Honda CR-V is positioned as a vehicle that issues excellent maneuverability on the carriageway. It should be noted the well-thought-out organization of the cabin. The machine is completed with a reliable motor, a transmission system. Honda CR-V RD-1 to 100 km / h accelerates about 12.5 seconds.
The car is equipped gasoline engine, on the first generation, the fuel consumption is on average 10 liters, and in the fifth this figure is about 7.8 liters, while the foreign car can be charged AI-92.
Characteristics of the CR-V automatic transmission
Appearance of ACPP Honda Wed-in
Box machine on Honda CR-V is designed for a long period of operation. The operating efficiency is the leading and slave shaft. Here there are gear pairs that have different gear ratios are not used by planetary gearboxes. Change high-speed modes happens without delays.
The automatic transmission has a complex structure, it includes a torque converter that is a link between power installation and gearbox itself. This mechanism It helps to increase the moment of force when moving. The activation of high-speed modes is carried out due to the resulting fluid pressure, the functioning of hydraulics.
Important! Before starting the start of Honda, the SRV must warm up.
In demand is the automatic transmission MRVA.. This type of checkpoint has 4 steps. Complete such a box can be a power setting, whose volume varies from 2 to 2.4 liters. Many choose cars with automatic gearbox Due to the fact that they are more convenient in management. In addition, this transmission helps to improve the speakers.
Signs of transmissions system problems on Honda CR-V
PPC malfunctions in most cases occur as a result of wear-related component parts related to it.
It should be transferred the main signs when the repair of the Honda automatic transmission is appropriate:
- the difficulty of switching speeds;
- oil leakage from gearbox;
- the appearance of jerks;
- the occurrence of characteristic noise, bubbling knocks on the side of the box.
With these manifestations, the Honda host must necessarily conduct a general diagnosis of automatic transmission. Consider the main reasons why the specified symptoms arise.
In the event that, after starting the engine, the vehicle does not turn on the transmissions, it is worth paying attention to the number transmission Oil. In most cases, this species Maltacks are related to what is noted low level ATF.
The danger is as an insufficient amount of oil, so and the oversupply. So, in the second case, it will begin to foam when heating will begin, it will be worse than the heat from the checkpoint. The consequence of this is rapid wear gears, jerks are possible when speeding is required.
Present gland is calculated for long-term loads. Its replacement is relevant if he has lost its elasticity, which can be marked by the boxes from the box. If the bearings failed, a characteristic sound may appear from the checkp. Also, sealing rings are not subject to restoration, they always change.
In some cases, the presence of vibration may be a consequence of the fact that there is a problem with the filter element.
Hydraulic box system provides activation necessary transmission. It includes switching and regulating plungers in the form of a cylinder. The overheating of the hydrotransformer is dangerous. As a rule, because of this, Honda can be celebrated in the salon nasty smell. For any machines with automatic transmission, it is impossible to be towed, sharp braking or accelerated.
Ignoring any malfunction from the box can lead to the creation emergency situation. Considering this, a foreign car must periodically expose to complete diagnosis.
Passage of transmission diagnostics on Honda CR-V
Repair with the compliance with the prescribed rules, the transmission system can mechanics that have experience in doing these works, which work in specialized service centers. However, owning certain skills, it is possible to independently carry out repair and restoration work.
Repair of the ACPP HONDA SRV RD 1 with their own hands begins with full-fledged visual diagnostics of the box. Next, it is necessary to extract it from the housing, proceed to disassembling the device. All detected worn items are subject to replacement. At the end, an assembly of this unit is made followed by its installation.
To remove the box, the disconnection of the subframe is required, the disassembly of the lower stabilizers. Next, the procedure for checking the integrity is subject to a torque converter. Also, it is necessary to visually inspect the box for oil leakage in the crankcase connections, frictional is diagnosed. All work should be carried out with maximum accuracy so as not to harm automotive system more.
During repair work It may be necessary to replace friction. If these items lose their working capacity, then because of this, problems with hydraulic block will be marked. In particular, jerks will appear when speeds are shown.
Due to the fact that this box is characterized by the complexity of the structure, the cost of its repair is high. Given this, you should not neglect its service. If there is a need for its service, it is required to purchase original spare parts.
Thus, the ACAP HONDA CR-V RD1 loses its work properties during the natural wear of its component parts. The main feature that there is a breakdown with a box - the appearance of characteristic vibrations, noise. Repair of this unit requires special equipment corresponding to the master's experience. Also, when installing new spare parts in the gearbox, it is advisable to follow certain rules. Worn or deformed spare parts related to the CAT are subject to replacement. The use of original component parts for it increases the service life of the repaired automatic transmission.
Transmission oil
Replacing the CR-V automatic automatic transmission oil is necessary at 40,000 km of run. What fuel should be used? For a given vehicle It is recommended to make a choice in favor of Honda ATF-DW1 fluid. Its preferential feature is to preserve their performance for a long time. As a rule, it takes about 3.5 liters.
To prevent oil starvation, wear of sealing rings, friction and other Spare parts of the checkpoint, during the implementation of a combustible change, requires installing a new filter.
It should be noted that the use non-quality oil It will adversely affect the solenoids, leads to the failure of the hydroblock. The mandatory replacement is subject to liquid, if it is poisoned, has acquired an unpleasant smell.
Oil change procedure in automatic transmission
If there is a need to replace transmission fluid, It is necessary to warm up the vehicles in advance (to ensure good fuel fluidity). Next, the car must be started on watching pit, Substitute an empty container under the car where the exhaust lubricant will be flushed. To unscrew the plug hole, it is worth using the hexagon. As soon as the glass fluid, the plug is spinning, after which you need to resort to adding a new fuel (you can use a funnel connected to the elastic hose). Check the oil level in the checkpoint seems to be possible by means of a measured probe.
Thus, the duration of the functioning of the transmission of Honda affects what the fuel is added to the box for which the original oils should be chosen.
The repair of the automatic gearbox Honda should always be carried out using high-quality components of spare parts. With overhaul automatic transmission, disassembly required this device From the car, followed by its bulkhead. Eliminate signs of a malfunction of the automatic transmission can specialist service specialists, since for such works needed special toolequipment.
Prices
Examples of recent work
When overhaul The gearbox is dismantled from the car. At this stage, the mechanic carefully examines the state of all systems serving the gearbox, supports the fastening of the power unit, etc.
After dismantling from the car, the automatic transmission enters the capital repairs site. It should be noted that in this area, as well as on all previous ones, work experienced masterswhich have higher technical education (engineering-physical). The repair of the automatic transmission of Honda SRV is repaired here, and after washing and drying all parts, their defectation is carried out, i.e. The possibility of further use of each part or the need to replace it is determined.
If desired, any customer may be present both when disassembling the gearbox and during the defective by its details. Upon completion of this procedure, the statement of the replaceable parts is drawn up, which is then compulsory consistent with the customer. It should be especially noted that during overhaul it is necessary, regardless of the status of automatic transmission, replace all seals and gaskets. The use of original spare parts only gearbox manufacturers increases the service life of the repaired automatic transmission Honda CR-V, but leads to a significant increase in the cost of spare parts. To achieve the most optimal combination of the ratio "price-quality" ratio allows the use of "Aftermarket" details, i.e. Companies specializing in the production of spare parts to automatic gearboxes.
Installation is made taking into account all technical requirements. At this stage, there is a replacement of the elements of fastening and auxiliary transmission service systems. In addition, during installation, preliminary adjustments of the elements of the outer part of the control system are performed.
Output diagnostics and rolling in the car. They are held on the same methods as the input diagnosis. In addition, all previously appeared fault codes are erased from the memory of the control unit.
Transmission with planetary gears is generally distinguished by excellent mass boar characteristics, not in vain on the legendary Ford T stood just such, only with manual, or rather, the "foot" control. The first attempts to adapt the torque converter to move the machine showed that the ideal combination for it will be the planetary transmission, which is very easily translated into automatic control.
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In the future, designers focused on improving mostly this option, and only now alternative schemes began to apply quite widely. And before the second half of the 90s there were practically no options. Yes, the variators were produced more or less massively, but even the speech was compared with "decent automatic transactions" - it was a transmission of purely for light cheap machines or motorcycles.
But other automatic transmissions were promptly produced - in particular, the combined automatic transmission company Honda, and then Mercedes. This branch of development is radically different in the design of its "relatives", has both advantages and disadvantages.
What are bad classic "planetary"?
With all the advantages of planetary gearboxes, they have at least two drawbacks in the automatic transmission. First, this is connected gear ratios all transfers, because planetary broadcasts Collected in the "rows", and you can not change the transfer number of only one transmission, without affecting the rest. This complicates the selection of transmission gear numbers, have to make compromises that, with an increase in the number of gears, are becoming less significant.
Secondly, all the components of the "chain" of the gear ratios are experiencing different loads of the engine torque: one above, others are significantly lower. And the duration of this load is also different. And when the most loaded row fails, it usually loses the performance of the entire transmission.
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Thirdly, in the technological plane, planetary automatic transmission is very different from the MCP passenger carswhich have been released only for a long time. Therefore, the manufacture of automatic transmission requires completely other production lines, calculation systems and technologies. And this is money.
It is necessary to admit that against the background of such advantages as compactness, almost complete unloading of the automatic automatic automotive case and the convenience of hydraulic control. These shortcomings are not particularly important for most automatic transmission manufacturers. However, there was a company that tried to refraart the trend.
Birth Hondomatic.
Honda is generally distinguished by some originality of structures. It is now they are quite a conformist, and in the 70-80th originality bash. So when creating automatic transmission, they distinguished themselves, using a far-nontrivial scheme. First Hondamatic for Maltro models Honda. N 360 AT was presented at the London Motor Show October 18, 1967 and produced a furor, since it was the first use of motor automatic transmissions so small volume.
The box was made without the use of the technologies of the main patent holders in this area, in particular BorgWarner, the cooperation with which was not charged at that time. Already the first three-stage automatic transmission were valves, a similar scheme was chosen for efficiency and high efficiency.
Unlike american machinesThis box was supposed to be applied with low-power motors. Then tested on the machines, the Honda design was installed on motorcycles. In 1976, the automatic transmission appeared on the Honda CB 750A Hondamatic, and then it was equipped with motorcycles with motors of 400 "cubes".
By the way, another unique feature classic ACPP Honda has become the design of the control system. Let me remind you that the box you need to "know", which torque gives out the motor to switch "upstairs" or "down". At that time, data from the motor did not seem to be possible from the motor possible, for in the go were mostly carburetors without any electronics. The "classic" method was in the pressure measurement in intake manifold before and after throttle valve, as well as monitoring the position of the gas pedal. Indirectly, it gave some idea of \u200b\u200bthe current torque.
But the system estimated it inaccurately, and therefore needed configuration for each concrete Engine And there was sensitive to the failures of the control system. I needed an alternative approach, and the engineer Torao Hattori found him: he used the simplest physical principle.
The moment at the GDT stator is always proportional to the moment transformation ratio. This means that if you connect a control system to it, it will be able to automatically change the transmissions, depending on the load and the transformation coefficient in GDT. It turns out practically perfect systemwhich can determine a large and low load on the motor, regardless of its real power.
A similar design in combination with the cooler gearman had a sufficiently large efficiency in order to be successfully applied on the smallest engines and also worked well on high speed Rotation of shafts (which was important, given the "riding" character of Honda motors). Moreover, Honda appeared to the BorgWarner designers to develop a layout, but harsh professionals answered that the creation of automatic transmission for such speeds and low-power engines is impossible.
Truly, the wedroom and control system with controlled hydraulic pressure valve turned out to be continuously created for each other. In the compaction automatic transmission, unlike the planetary, not necessarily unblocking the clutch-frictions to enable increased transmission. It is enough to put the overtaking coupling between the first and second transmissions, and switching 1-2 will pass only by incorporating the adhesion of the second transmission.
Let me remind you that the overtaking coupling is a passive element of the automatic transmission, which allows one of the shafts to rotate relative to another only in one direction. When the first transmission turns on in the batter, the speed of rotation of its drive gear of the secondary shaft is lower than the rotational speed of the driven gear of the secondary shaft of the second transmission. Just due to the difference in gear ratios.
If overtaking courage There was no, when you turn on the "fast" second transfer, it would be necessary to turn off the friction teams first. But the clutch free travel This question decides, and significantly simplifies management. The automatic transmission of such a design costs a fairly simple control system. The first transmission springs in it are always included in the DRIVE position, and as the second and other increases are turned on as overclocking.
The use of such an "alternative" scheme allowed us to successfully apply automatic boxes with small "twisted" motors, and the switching speed of 1-2 best affected the time of overclocking to hundreds, which was playing on the hand of the company's sports image.
The first boxes were two-speed, then the third was added, and in 1982 there was a four-stage automatic transmission of the same scheme for the Prelude model, but already with a more traditional pneumohydraulic control system.
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Great freedom regarding the gear ratios mentioned above, generally made Hondovsky combat quotes much more efficiently than planetary competitors.
And in addition to a good working range, reliability was a big advantage of such structures, and the matter is not only in the manufacturer. As I said, in the compact automatic transmission all the programs do not depend on each other. Does not turn on the second? Nothing, rides on the third. Does not turn on the third? We are going on the fourth and fifth.
In addition, the case of the box is loaded with the moment, and therefore the shafts rotate in roller bearings, which means the minimum number of elements with sliding bearings sensitive to lubricant. Everything is monumental here: the balls and rollers work with minimal oil pressure, not very demanding to temperature regimes. The mechanical base of the box is much less vulnerable to both oil contamination and its temperature.
And of course, the friction sprouts themselves are tritely more reliable, because even with maximum relief, they have a very gentle mode of operation. Any frictions are loaded only at the time when the transfer is on, all the rest they do not work and cooled, wear products from them are washed out. And frictions high Gear And the first made with a good margin of strength, besides, access to first gear is possible outside - it is not even necessary to remove the box. As a result, the springs resource for 300 thousand kilometers, and after this mileage you can simply be replaced, not the touch of the rest of the mechanics.
Improvers
It was to the wind automatic transmission that Mercedes turned, developing "automatic" for its first front-wheel drive car. The company whose products then produced underlined reliable and comfortable, preferred the wedlique scheme to create its automatic transmission type 722.7. From 1998 to 2005, these boxes were put on cars of A-Class and VaNeo with motors up to 2.1 liters. Like Hondovsky structures, he also turned out to be extremely reliable.
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Disadvantages and limit of construction
Honda CR -V Third Generation, Last Year Restyling, is still sold with a 5-speed box. Why? Because more gear from the battery to be, alas, can not.
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An increase in the number of transmissions on the compact automatic transmission was at first easy. To go from three to four and four to five, it was not necessary to break the established structures (as on planets), it was enough to add another pair of gears and grip for them.
It was the five-speed automatic transmission that appeared in 2001 became the design limit. In the future, restrictions began to affect the dimensions and mass, which from the very beginning there were more in such designs than that of planetary boxes, and only due to successful constructive solutions at some stage, this flaw could be smoothed.
If you leave the patent cleanliness and dependence of the BorgWarner Heritage dependence, then obvious disadvantages of the basic boxes are dimensions and weight. The trivial automatic transmission for four or five steps is noticeably superior to the Gabarities of the MCPP with the same number of steps and even a five-six-speed "planetary".
Traditional boxes with an increase in the number of gears almost do not increase the dimensions, because it is possible to facilitate the design due to the frontal gear ratios, and each in the boom box each new gear leads to an increase in dimensions and mass.
In addition, Honda did not sell their automatic transmission "to the side" and did not transfer the patents to anyone. Yes, and they were not designed for powerful and low-speed motors from the United States, which in the 80-90s there was a lion's share of sales automatic transmission in the world, and in Japan, competition was great and without them. Toyota used Honda's work. The time of their technological leadership remained in the 90s.
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Instead of good farewell
However, the story has not ended. If you look closely, modern preselative "robots" is pretty reminder of the same Hondovskiy boxes, only instead of the friction package for each transmission of the frictional frictions, and they are called clutch. And the shafts and gears of each gear ratio are included in a classic way, couplings.
Which is the reliability of such structures, which is now clearly not comparable to the Hondovskaya "classic", then give her time, at least ten years for improvement. They will show us again.
AT car Honda. One of the most expensive nodes is an automatic transmission, so if the first signs that there are problems with a box appear, you need to troubleshoot as soon as possible. If the problem is not fixed in time, it can lead to serious problems, and more expensive repairs.
As a rule, it is possible to solve the problem with the help of a specialized service, resorting to the help of a specialist, but many motorists prefer to repair Honda's automatic transmission on their own independently, it helps to save significantly.
Despite the fact that the CR-V automatic transmission is a fairly reliable unit with a large service life, this node must be serviced timely. The main reasons for which the service life of the machine is reduced by:
- Not regular oil change;
- Foreign particles fall into the automatic transmission;
- Operation occurs with a disadvantage or vice versa with a rebupping lubricating fluid, it leads to a rapid wear of the gear, which leads to roques and breakdowns when switching;
- Sharp acceleration and braking;
- Towing, the car with such a transmission is strictly prohibited towing;
- The use of non-original transmission fluid;
In order to automatic transmission He served as long as possible, you need to constantly maintain and check necessary level Oil. Especially for this in the box crankcase there is a level pointer.
In order for the temperature of the lubricating fluid to be optimal, the circulation of oil occurs on the tube oil of the wire, through the lower tank located in the radiator, connected to the gearbox using rubber hoses.
For check technical status Honda's automatic automatic transmission of Honda SRV RD1 you need to drive the car to the observation pit or the overpass, after which you will need to do the following:
- We check which level of lubricating fluid;
- If it is necessary to plunge oil;
- The gearbox is inspecting from all sides, on the absence of sublishes, especially bypassing the places where the crankcase is connected, the glands of the front wheels drive, as well as we look at the plug hole;
- We start the car, then begin to switch the selector lever, and check the box operation. The lever is translated into the neutral position "N", let go of the brake, after that the car should remain in place;
- We check the operation of the gearbox while moving, to the "D" position, first begin to accelerate, then slow down, in the normal working state of the transmission must be switched smoothly, crunches, knocks and others outsided sounds must be absent. After that, we make a check in the "R" position and 2, 1.
If, while moving when shifting gears, strikes occur, there is a smell of Gary, the box works with an increased noise, this suggests that the gear of the friction or bearing is most faredly caught. Eliminate such a malfunction can only with the removal and disassembly of the checkpoint. The device of the machine is the same, so there should be no difficulties with the analysis and repair. The only difference in what is available is, this is how the transmission is arranged, it can be hydraulic or electronic.
Signs of trouble
Everything possible troubleshooting which occur in the box work, it is best to identify and eliminate at the first stages. The main features that say that there are problems with transmission as follows:
- During gear shift, there are characteristic sounds and a foreign smell;
- Transmission does not turn on, this is a sign that the problem is serious, and the repairs should be made immediately;
- Under the car there are oil spots, it suggests that there is a leak somewhere;
- Begins to flash or ceases to burn the position of the selector position of the Honda CR V automatic transmission, or the check lights up, as a result, the box stops working, or blocks it. This problem is quite often happening due to the fact that the sensor hits dirt or moisture and it starts to bite. The problem is solved by removing and cleaning the sensor.
Repair boxes
In order to repair the automatic transmission on the CR-V, you can contact a specialized car service, or to produce all work yourself. To dismantle the box, you need to remove the subframe and disconnect the lower stabilizers. Repair lies in the disassembly of the checkpoint, followed by the elimination of all identified faults. First of all, the functioning and integrity of the hydrotransformer is checked. Because of the sharp braking, friction departments often fail, so they should also check their condition. Everything independent work Repair can be made if there are minimal knowledge in the structure of the car.
Summing up can conclude that Automatic box The gear is one of the complex mechanisms in the car, followed by timely and constant care, otherwise it will quickly fail. If you operate the machine correctly and timely maintain, then it will last for a very long time.
