Control system of hydraulic transmission and vehicle
阅读说明:本技术 液压变速器的控制系统和车辆 (Control system of hydraulic transmission and vehicle ) 是由 黄绪震 刘化雪 唐广清 李海岩 尤秀亮 于 2019-03-29 设计创作,主要内容包括:一种液压变速器的控制系统和车辆,液压变速器的控制系统,包括:供油装置;离合器润滑油路;液力变矩器润滑油路,液力变矩器润滑油路包括润滑流量换向阀,润滑流量换向阀的进油口与供油装置相连,润滑流量换向阀的第一出油口与液力变矩器的润滑进油口连通,液力变矩器的润滑出油口与润滑流量换向阀的回油口相连,润滑流量换向阀的回油口与第三出油口相连,润滑流量换向阀的第二出油口及第三出油口均与离合器润滑油路连通,且润滑流量换向阀的进油口可选择性地与润滑流量换向阀的第一出油口、第二出油口中的一个连通。本发明的液压变速器的控制系统,可实现对液力变矩器、离合器的润滑和冷却,且可实现任意挡位的锁止,提高工作效率。(A control system of a hydraulic transmission and a vehicle, the control system of the hydraulic transmission comprising: an oil supply device; a clutch lubricating oil path; the lubricating oil path of the hydraulic torque converter comprises a lubricating flow reversing valve, an oil inlet of the lubricating flow reversing valve is connected with an oil supply device, a first oil outlet of the lubricating flow reversing valve is communicated with a lubricating oil inlet of the hydraulic torque converter, a lubricating oil outlet of the hydraulic torque converter is connected with an oil return port of the lubricating flow reversing valve, the oil return port of the lubricating flow reversing valve is connected with a third oil outlet, a second oil outlet and a third oil outlet of the lubricating flow reversing valve are both communicated with the lubricating oil path of the clutch, and an oil inlet of the lubricating flow reversing valve is selectively communicated with one of the first oil outlet and the second oil outlet of the lubricating flow reversing valve. The control system of the hydraulic transmission can lubricate and cool the hydraulic torque converter and the clutch, can lock any gear and improve the working efficiency.)
1. A control system (100) for a hydraulic transmission, comprising:
an oil supply device;
a clutch lubricating oil path;
the lubricating oil path of the hydraulic torque converter comprises a lubricating flow reversing valve (12), an oil inlet of the lubricating flow reversing valve (12) is connected with the oil supply device, a first oil outlet of the lubricating flow reversing valve (12) is communicated with a lubricating oil inlet of the hydraulic torque converter (15), a lubricating oil outlet of the hydraulic torque converter (15) is connected with an oil return port of the lubricating flow reversing valve (12), an oil return port of the lubricating flow reversing valve (12) is connected with a third oil outlet of the lubricating flow reversing valve (12), a second oil outlet of the lubricating flow reversing valve (12) and the third oil outlet of the lubricating flow reversing valve (12) are communicated with the clutch lubricating oil path, and an oil inlet of the lubricating flow reversing valve (12) is selectively communicated with the first oil outlet of the lubricating flow reversing valve (12), the second oil outlet of the lubricating flow reversing valve (12), One of the second oil outlets is communicated;
the clutch control oil way is connected with the oil supply device;
and the gear shifting control oil way is communicated with the oil supply device.
2. The control system (100) of a hydraulic transmission according to claim 1, wherein the lubrication flow direction valve (12) is configured to control the oil inlet of the lubrication flow direction valve (12) to communicate with the first oil outlet of the lubrication flow direction valve (12) when the running speed of the vehicle is less than or equal to a set value, and to control the oil inlet of the lubrication flow direction valve (12) to communicate with the second oil outlet of the lubrication flow direction valve (12) when the running speed of the vehicle is greater than the set value.
3. The control system (100) of a hydraulic transmission according to claim 1, further comprising: the lubricating device comprises a first one-way valve (14) and an oil cooler (16), wherein the first one-way valve (14) and the oil cooler (16) are connected in series between a lubricating flow reversing valve (12) and a clutch lubricating oil path, the first one-way valve (14) is communicated with the clutch lubricating oil path in a one-way mode from the lubricating flow reversing valve (12), a second oil outlet of the lubricating flow reversing valve (12) and a third oil outlet of the lubricating flow reversing valve (12) are connected with an inlet end of the first one-way valve (14) through different branches respectively, and a first throttling hole (13) is formed between the second oil outlet and the branch of the inlet end of the first one-way valve (14).
4. The control system (100) of a hydraulic transmission according to claim 1, further comprising: the flow control valve (10) is arranged between an oil inlet of the lubricating flow reversing valve (12) and an oil outlet of the oil supply device, and the flow control valve (10) is used for controlling the oil inlet flow of the oil inlet of the lubricating flow reversing valve (12).
5. The control system (100) of the hydraulic transmission according to any one of claims 1-4, wherein the clutch control oil passage includes: the oil supply device comprises a locking clutch pilot valve (24) and a locking clutch mechanical valve (27), wherein an oil inlet of the locking clutch pilot valve (24) is connected with an oil outlet of the oil supply device, an oil outlet of the locking clutch pilot valve (24) is connected with a control oil port of the locking clutch mechanical valve (27), an execution oil port of the locking clutch mechanical valve (27) is connected with the oil outlet of the oil supply device, and the locking clutch mechanical valve (27) is used for locking the clutch.
6. The control system (100) of a hydraulic transmission according to claim 5, further comprising: and the second throttle hole (18) and the second one-way valve (17), the second throttle hole (18) and the second one-way valve (17) are arranged between the lockup clutch mechanical valve (27) and an oil inlet path of the hydraulic torque converter lubricating oil path, the second throttle hole (18) is arranged between the second one-way valve (17) and the lockup clutch mechanical valve (27), and the second one-way valve (17) is communicated to the hydraulic torque converter lubricating oil path from the lockup clutch mechanical valve (27) in a one-way mode.
7. The control system (100) of a hydraulic transmission according to any one of claims 1-4, further comprising: the hydraulic parking oil way is provided with a parking switch valve (29), the parking switch valve (29) is provided with a first oil inlet, a second oil inlet, a first oil outlet and a second oil outlet, a first oil outlet of the parking switch valve (29) is connected with a piston cavity of a parking actuating mechanism (31), a second oil outlet of the parking switch valve (29) is connected with a parking driving piece of the parking actuating mechanism (31), a first oil inlet of the parking switch valve (29) is communicated with a first oil outlet of the parking switch valve (29), a second oil inlet of the parking switch valve (29) is communicated with a second oil outlet of the parking switch valve (29), and a first oil inlet of the parking switch valve (29) and a second oil inlet of the parking switch valve (29) can be selectively connected with an oil outlet of the oil supply device.
8. The control system (100) of a hydraulic transmission according to claim 7, further comprising: the lubricating device comprises a lubricating flow pilot valve (23), wherein an oil inlet of the lubricating flow pilot valve (23) is connected with an oil outlet of the oil supply device, an oil outlet of the lubricating flow pilot valve (23) is connected with a control oil port of the parking switch valve (29), and the lubricating flow pilot valve (23) is used for controlling the parking switch valve (29) to act so as to enable one of a first oil inlet of the parking switch valve (29) and a second oil inlet of the parking switch valve (29) to be connected with the oil outlet of the oil supply device.
9. The control system (100) of a hydraulic transmission according to any one of claims 1-4, wherein the shift control circuit includes:
the plug-in electromagnetic valves are connected with the clutches and the brakes;
a range switching valve (35), the range switching valve (35) being configured to control one of the plurality of cartridge solenoid valves to selectively connect the one of the plurality of cartridge solenoid valves to one of the one or more brakes of the plurality of clutches.
10. A vehicle, characterized in that a control system (100) of a hydraulic transmission according to any one of claims 1-9 is provided.
Technical Field
The invention relates to a control system of a hydraulic transmission and a vehicle with the same.
Background
Automatic transmissions are widely used in passenger cars today. In power transmission, compared with a manual transmission, the automatic transmission does not use a clutch mechanism, but adopts a hydraulic torque converter to flexibly transmit engine power to each gear of the transmission, so that the vehicle runs more stably, a clutch pedal is omitted, the driving operation is simpler, and the driving comfort of the vehicle is improved on the whole. The automatic transmission which is mainstream in the market at present has 4 or 6 forward gears, and the improvement of the fuel economy when the vehicle runs at a high speed is limited by a small number of gears.
The hydraulic transmission of the automatic transmission and the execution of the shift actuators (clutches, brakes, etc.) are implemented by means of a hydraulic control system. At present, most of hydraulic control systems for automatic transmissions in the market are realized by adopting solenoid valve pilot control slide valves, the oil way is complex, the oil supply allowance is large, the working efficiency of the hydraulic system is low, and the improvement space exists.
Disclosure of Invention
In view of the above, the present invention is directed to a control system for a hydraulic transmission.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a control system for a hydraulic transmission, comprising: an oil supply device; a clutch lubricating oil path; the lubricating oil path of the hydraulic torque converter comprises a lubricating flow reversing valve, an oil inlet of the lubricating flow reversing valve is connected with the oil supply device, a first oil outlet of the lubricating flow reversing valve is communicated with a lubricating oil inlet of the hydraulic torque converter, a lubricating oil outlet of the hydraulic torque converter is connected with an oil return port of the lubricating flow reversing valve, an oil return port of the lubricating flow reversing valve is connected with a third oil outlet of the lubricating flow reversing valve, a second oil outlet of the lubricating flow reversing valve and a third oil outlet of the lubricating flow reversing valve are both communicated with the lubricating oil path of the clutch, and an oil inlet of the lubricating flow reversing valve is selectively communicated with one of the first oil outlet and the second oil outlet of the lubricating flow reversing valve; the clutch control oil way is connected with the oil supply device; and the gear shifting control oil way is communicated with the oil supply device.
Further, the lubricating flow reversing valve is set to control the oil inlet of the lubricating flow reversing valve to be communicated with the first oil outlet of the lubricating flow reversing valve when the running speed of the vehicle is smaller than or equal to a set value, and control the oil inlet of the lubricating flow reversing valve to be communicated with the second oil outlet of the lubricating flow reversing valve when the running speed of the vehicle is larger than the set value.
Further, still include: the first one-way valve and the oil cooler are connected in series between the lubricating flow reversing valve and the clutch lubricating oil way, the first one-way valve is communicated with the clutch lubricating oil way in a one-way mode from the lubricating flow reversing valve, a second oil outlet of the lubricating flow reversing valve and a third oil outlet of the lubricating flow reversing valve are connected with the inlet end of the first one-way valve through different branch circuits respectively, and a first throttling hole is formed between the second oil outlet and the branch circuit at the inlet end of the first one-way valve.
Further, still include: the flow control valve is arranged between an oil inlet of the lubricating flow reversing valve and an oil outlet of the oil supply device and used for controlling the oil inlet flow of the oil inlet of the lubricating flow reversing valve.
Further, the clutch control oil passage includes: the oil inlet of the locking clutch pilot valve is connected with the oil outlet of the oil supply device, the oil outlet of the locking clutch pilot valve is connected with the control oil port of the locking clutch mechanical valve, the execution oil port of the locking clutch mechanical valve is connected with the oil outlet of the oil supply device, and the locking clutch mechanical valve is used for a locking clutch.
Further, still include: and the second throttle hole and the second one-way valve are arranged between the lock-up clutch mechanical valve and an oil inlet oil way of the hydraulic torque converter lubricating oil way, the second throttle hole is arranged between the second one-way valve and the lock-up clutch mechanical valve, and the second one-way valve is communicated to the hydraulic torque converter lubricating oil way from the lock-up clutch mechanical valve in a one-way mode.
Further, still include: the hydraulic parking oil circuit is provided with a parking switch valve, the parking switch valve is provided with a first oil inlet, a second oil inlet, a first oil outlet and a second oil outlet, the first oil outlet of the parking switch valve is connected with a piston cavity of a parking executing mechanism, the second oil outlet of the parking switch valve is connected with a parking driving piece of the parking executing mechanism, the first oil inlet of the parking switch valve is communicated with the first oil outlet of the parking switch valve, the second oil inlet of the parking switch valve is communicated with the second oil outlet of the parking switch valve, and the first oil inlet of the parking switch valve and the second oil inlet of the parking switch valve can be selectively connected with the oil outlet of the oil supply device.
Further, still include: the oil inlet of the lubrication flow pilot valve is connected with the oil outlet of the oil supply device, the oil outlet of the lubrication flow pilot valve is connected with the control oil port of the parking switch valve, and the lubrication flow pilot valve is used for controlling the parking switch valve to act so that one of the first oil inlet of the parking switch valve and the second oil inlet of the parking switch valve is connected with the oil outlet of the oil supply device.
Further, the shift control oil passage includes: the plug-in electromagnetic valves are connected with the clutches and the brakes; a range switching valve for controlling one of the plurality of cartridge solenoid valves to selectively connect one of the plurality of cartridge solenoid valves with one of the one or more brakes of the plurality of clutches.
Compared with the prior art, the control system of the hydraulic speed changer has the following advantages:
1) according to the control system of the hydraulic transmission, the lubrication and cooling of the hydraulic torque converter and the clutch can be realized, the locking of any gear can be realized, and the working efficiency is improved.
Another object of the present invention is to provide a vehicle provided with the control system of the hydraulic transmission according to any one of the above embodiments.
The vehicle and the control system have the same advantages compared with the prior art, and are not described in detail herein.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a control system according to an embodiment of the present invention.
Description of reference numerals:
the
the oil tank 1, the first oil filter 2, the
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, a
As shown in fig. 1, the clutch lubricating oil path, the torque converter lubricating oil path, the clutch control oil path and the gear shifting control oil path are all connected with an oil supply device, and the oil supply device can supply hydraulic oil to the clutch lubricating oil path, the torque converter lubricating oil path, the clutch control oil path and the gear shifting control oil path, so that the functions and effects of the oil paths are realized by injecting the hydraulic oil, and further, the transmission is assisted to realize gear shifting and speed changing and lubricate and cool parts of the speed changing system.
As shown in fig. 1, the oil supply device includes: the oil tank 1, the first pump 4, the second pump 5 and the main control oil way.
Oil tank 1 is used for storing fluid, oil tank 1 can be the gearbox oil pan, first pump 4 and second pump 5 are used for providing fluid circulation power, wherein, first pump 4 can be the mechanical pump, second pump 5 can be the electronic pump, the discharge capacity of electronic pump can be according to carrying on the motorcycle type difference and carrying on the apolegamy, the electronic pump also can select for use two stage electronic pump, first pump 4 all links to each other with main control oil circuit with second pump 5, in order to drive the hydraulic oil in the oil tank 1 to the main control oil circuit through first pump 4 and second pump 5, rethread main control oil circuit flows to the lubricated oil circuit of clutch, the lubricated oil circuit of torque converter, clutch control oil circuit and gear shift control oil circuit. Therefore, the discharge capacity of the mechanical pump can be designed to be smaller, the size and the weight of the mechanical pump are reduced, and the working efficiency of the mechanical pump and the fuel economy of the whole vehicle are improved.
As shown in fig. 1, an inlet of the first pump 4 is connected to the oil tank 1, and an outlet of the first pump 4 is connected to the main control oil path, as shown in fig. 1, a first oil filter 2 is disposed between the first pump 4 and the oil tank 1, the first oil filter 2 is used for filtering the hydraulic oil flowing from the oil tank 1 to the first pump 4 so as to reduce the impurity content of the hydraulic oil flowing from the first pump 4 to the main control oil path, and as shown in fig. 1, a fourth check valve 7 is disposed between the first pump 4 and the main control oil path, the fourth check valve 7 is in one-way communication from the first pump 4 to the main control oil path, and the hydraulic oil in the first pump 4 can flow to the main control oil path in one-way manner so as to output the hydraulic oil to the main control oil path, and simultaneously prevent the hydraulic oil in the main control oil path from flowing backwards to the first pump 4.
As shown in fig. 1, an inlet of the second pump 5 is connected to the oil tank 1, an outlet of the second pump 5 is connected to the main control oil path, and as shown in fig. 1, a
The outlet of the first pump 4 and the outlet of the second pump 5 are connected with the main control oil way, so that the first pump 4 and the second pump 5 can provide hydraulic oil to the main control oil way simultaneously, the first pump 4 and the second pump 5 can also supply oil to the main control oil way independently, the oil supply mode is flexible and selectable, and the oil supply efficiency can be selectively set according to actual needs so as to ensure that the oil quantity in the main control oil way meets the use requirement.
As shown in fig. 1, the main control oil circuit is provided with a main oil circuit safety valve, which is a
The lubricating oil path of the clutch is connected with the lubricating cavities of each brake and each clutch of the vehicle to provide hydraulic oil for the brakes and the clutches, so that the brakes and the clutches are lubricated and cooled, the brakes and the clutches are ensured to have stable and reliable working states, and the service lives of the brakes and the clutches are prolonged.
The torque converter lubricating oil path is connected with the oil supply device. As shown in fig. 1, the main control oil path is connected with the torque converter lubricating oil path through a main pressure regulating valve 9, an oil inlet of the main pressure regulating valve 9 is connected with an oil supply device, an oil outlet of the main pressure regulating valve 9 is connected with the torque converter lubricating oil path, the main pressure regulating valve 9 can selectively communicate the main control oil path with the torque converter lubricating oil path, and the main pressure regulating valve 9 further comprises an oil discharge port connected with the mailbox.
The main pressure regulating valve 9 has three operating positions: when the main pressure regulating valve 9 is at the first working position, the main pressure regulating valve 9 is not opened, an oil inlet and an oil outlet of the main pressure regulating valve 9 are not communicated, and hydraulic oil in the main control oil way does not enter a lubricating oil way of the hydraulic torque converter; when the main pressure regulating valve 9 is in the second working position, the main pressure regulating valve 9 is located at the middle position, at the moment, an oil inlet and an oil outlet of the main pressure regulating valve 9 are communicated, and therefore hydraulic oil in the oil supply device can flow to a lubricating oil path of the hydraulic torque converter through the main pressure regulating valve 9; when the main pressure regulating valve 9 is in the third working position, the main pressure regulating valve 9 is located at the left position, at this time, an oil inlet of the main pressure regulating valve 9 is communicated with an oil discharging port of the main pressure regulating valve 9, and redundant hydraulic oil in the main control oil way can flow back to the mailbox through the oil discharging port, so that the situation that the pressure of the main control oil way is too high due to too much hydraulic oil in the main control oil way is avoided, and the stability and the safety of the main control oil way are ensured.
Thus, when the main regulator valve 9 is in the second operating position, the hydraulic oil in the oil supply device flows through the main regulator valve 9 to the torque converter lubrication oil passage and flows through the torque converter lubrication oil passage, thereby selectively lubricating or cooling the
As shown in fig. 1, a main pressure regulating
As shown in fig. 1, the torque converter lubrication circuit includes a lubrication flow direction valve 12.
The lubrication flow reversing valve 12 includes an oil inlet, a first oil outlet, a second oil outlet, a third oil outlet, and an oil return port.
As shown in fig. 1, an oil inlet of the lubrication flow reversing valve 12 is connected to an oil supply device, an oil inlet of the lubrication flow reversing valve 12 is connected to a main control oil path through a main pressure regulating valve 9, an oil outlet of the main pressure regulating valve 9 is connected to an oil inlet of the lubrication flow reversing valve 12, and hydraulic oil in the main control oil path can flow to the lubrication flow reversing valve 12 through the main pressure regulating valve 9.
A first oil outlet of the lubrication flow reversing valve 12 is communicated with a lubrication oil inlet of the
The oil inlet of the lubrication flow reversing valve 12 is selectively communicated with one of the first oil outlet and the second oil outlet of the lubrication flow reversing valve 12, that is, the oil inlet of the lubrication flow reversing valve 12 is communicated with the first oil outlet of the lubrication flow reversing valve 12 and is also communicated with the second oil outlet of the lubrication flow reversing valve 12. When the oil inlet of the lubrication flow reversing valve 12 is communicated with the first oil outlet of the lubrication flow reversing valve 12, the hydraulic oil firstly passes through the
As shown in fig. 1, when the oil inlet of the lubrication flow direction valve 12 is communicated with the first oil outlet of the lubrication flow direction valve 12, the hydraulic oil sequentially passes through the oil inlet of the lubrication flow direction valve 12, the first oil outlet of the lubrication flow direction valve 12, the lubrication oil inlet of the
As shown in fig. 1, when the oil inlet of the lubrication flow direction valve 12 is communicated with the second oil outlet of the lubrication flow direction valve 12, the hydraulic oil sequentially passes through the oil inlet of the lubrication flow direction valve 12 and the second oil outlet of the lubrication flow direction valve 12, and flows into the clutch lubrication oil path through the second oil outlet of the lubrication flow direction valve 12 to lubricate and cool the brake and the clutch, and the hydraulic oil does not pass through the
The lubricating flow reversing valve 12 is set to control the oil inlet of the lubricating flow reversing valve 12 to be communicated with the first oil outlet of the lubricating flow reversing valve 12 when the running speed of the vehicle is less than or equal to a set value, and control the oil inlet of the lubricating flow reversing valve 12 to be communicated with the second oil outlet of the lubricating flow reversing valve 12 when the running speed of the vehicle is greater than the set value, so that the lubricating oil path of the hydraulic torque converter comprises a first working mode and a second working mode.
In the first working mode, the oil inlet of the lubrication flow reversing valve 12 is communicated with the first oil outlet of the lubrication flow reversing valve 12, at this time, the running speed of the vehicle is less than or equal to a set value, the
In the second working mode, the oil inlet of the lubrication flow reversing valve 12 is communicated with the second oil outlet of the lubrication flow reversing valve 12, at this time, the running speed of the vehicle is greater than a set value, the
The clutch control oil way is connected with the oil supply device and used for controlling the clutch to be locked, and the clutch control oil way can complete the clutch locking when the gear is shifted at will, so that the working efficiency of the transmission is improved.
The gear-shifting control oil way is communicated with the oil supply device and is used for controlling the clutch and the brake so as to realize the switching and selection of a plurality of different gears, the gear-shifting time is short, the gear-shifting efficiency is high, the number of gears which can be realized is large, and the improvement of the fuel economy is facilitated.
According to the
In some embodiments, as shown in fig. 1, the
As shown in fig. 1, the first check valve 14 and the oil cooler 16 are connected in series between the lubrication flow direction valve 12 and the clutch lubrication oil path, the inlet end of the first check valve 14 is connected to the second oil outlet and the third oil outlet of the lubrication flow direction valve 12, the outlet end of the first check valve 14 is connected to the inlet end of the oil cooler 16, the outlet end of the oil cooler 16 is connected to the
The first check valve 14 is in one-way communication with the clutch lubricating oil path from the lubricating flow reversing valve 12, that is, the hydraulic oil in the lubricating flow reversing valve 12 can flow to the clutch lubricating oil path in one way through the first check valve 14, so that the hydraulic oil in the clutch lubricating oil path is prevented from flowing back to the lubricating flow reversing valve 12, the oil amount in the clutch lubricating oil path is kept stable, it is ensured that the brake and the clutch can be effectively lubricated and cooled, the oil cooler 16 can cool and cool the hydraulic oil entering the clutch lubricating oil path, so that the hydraulic oil is kept at a low temperature, and the cooling effect of the hydraulic oil on the brake and the clutch is favorably improved.
As shown in fig. 1, the second oil outlet of the lubrication flow rate reversing valve 12 and the third oil outlet of the lubrication flow rate reversing valve 12 are respectively connected with the inlet end of the first check valve 14 through different branches, a
As shown in fig. 1, the
The
As shown in fig. 1, the
In some embodiments, as shown in fig. 1, the clutch control oil passage includes: a lock-up
As shown in fig. 1, an oil inlet of the lockup
The lock-up
As shown in fig. 1, the
The
Specifically, when the vehicle runs at a high speed, the
In some embodiments, as shown in fig. 1, the
The hydraulic parking oil path is provided with a
As shown in fig. 1, the first oil inlet of the
One control port of the
in a first working state, the
In a second working state, the
In this way, if the
The oil inlet of the lubrication
In some embodiments, as shown in fig. 1, the shift control oil passage includes: a plurality of cartridge solenoid valves and a shift
A plurality of cartridge solenoid valves connected to the plurality of clutches and the plurality of brakes, and a
As shown in fig. 1, the shift control oil path includes 5 solenoid-in-cartridges, the 5 solenoid-in-cartridges are connected to 4 clutches and 2 brakes, the 5 solenoid-in-cartridges are respectively a first solenoid-in-
As shown in fig. 1, the
As shown in fig. 1, the gear shift control oil path further includes a gear
As shown in fig. 1, a third orifice 37 is provided between the shift
A fifth orifice 43 and a
Therefore, hydraulic oil in the main control oil way flows to the clutches and the brakes through the plug-in electromagnetic valves, the gear shifting steering valves and the corresponding throttling holes to finish multiple forward gears and reverse gears, the clutches and the brakes are directly controlled through the plug-in electromagnetic valves, corresponding gear shifting time is shortened, quick gear shifting is finished, and the
As shown in fig. 1, the first, second, third, fourth and fifth
From this, can realize the fast and stable operation of shifting through this kind of structure of shifting, improve the travelling comfort of driving, and many gears have improved fuel economy.
The invention also provides a vehicle.
The vehicle according to the embodiment of the invention includes the
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
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