Hydraulic parking locking mechanism and parking method
A parking lock, hydraulic technology, applied in the field of vehicles, can solve the problems of high cost, difficult layout, complex structure, etc., and achieve the effect of consistent movement height, convenient integration and installation, and accurate travel
Pending Publication Date: 2022-05-13
CHONGQING CHANGAN AUTOMOBILE CO LTD
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Problems solved by technology
[0004] At present, most parking lock mechanisms for automatic transmissions have the problems of complex structure, difficult layout and high cost
Method used
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[0038] The present invention will be further described below in conjunction with accompanying drawing.
[0039] Such as Figure 1 to Figure 6 The hydraulic parking lock mechanism shown includes a transmission housing, a hydraulic parking actuator assembly and a parking assembly, and the hydraulic parking actuator assembly and the parking assembly are both arranged in the transmission housing;
[0040] The hydraulic parking executive assembly includes a hydraulic cylinder, a locking member, a locking spring 19 and a driving member. The hydraulic cylinder includes a cylinder body 5, a piston that cooperates with the cylinder body 5, and a piston rod 6 that is connected to the piston. The piston rod 6 is provided with P gear locking groove 13 and non-P gear locking groove 14, the locking piece is rotatably connected to the cylinder body 5, the locking piece has a first position and a second position, and the locking spring 19 is used to drive the locking piece Rotate from the se...
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The invention relates to a hydraulic type parking locking mechanism and a parking method. The hydraulic type parking locking mechanism comprises a hydraulic parking execution assembly and a parking assembly. The hydraulic parking execution assembly comprises a hydraulic cylinder, a locking piece, a locking spring and a driving piece, a piston rod of the hydraulic cylinder is provided with a P-gear locking groove and a non-P-gear locking groove, the locking piece is provided with a first position and a second position, and the locking spring is used for driving the locking piece to rotate from the second position to the first position. The driving piece is used for driving the locking piece to rotate from the first position to the second position; when the locking piece is located at the first position, the locking piece is clamped into the P-gear locking groove or the non-P-gear locking groove. When the locking piece is located at the second position, the locking piece is separated from the P-gear locking groove or the non-P-gear locking groove; the parking assembly comprises a parking gear, a parking pawl, a transmission piece and a return spring. A hydraulic parking locking mechanism is adopted in the parking method. The system is high in control precision, easy to arrange on the whole vehicle and high in generalization degree.
Description
technical field [0001] The invention relates to vehicles, in particular to a hydraulic parking locking mechanism and a parking method. Background technique [0002] The motor vehicle parking lock mechanism is used to lock the motor vehicle when the vehicle is stationary. It is a common security system to ensure that there will be no slippage or slope after parking by locking the vehicle drive shaft in the direction of rotation. device. Parking lock mechanisms are especially suitable for use in motor vehicles with automatic transmissions and in hybrid or electric vehicles. [0003] When the parking lock mechanism brakes, the parts involved will bear a large load. If the vehicle is still running when the parking lock mechanism brakes, a huge impact will be transmitted to the parking lock mechanism through the vehicle drive shaft Therefore, the parts of the parking lock mechanism must have sufficient reliability. [0004] At present, most parking lock mechanisms for automati...
Claims
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Login to View More IPC IPC(8): F16H63/34
CPCF16H63/3425
Inventor 任国强刘继伟余洪张洁袁标唐学民
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD