Parking brake device of vehicle and operating method thereof
The technology of a parking brake and working method, which is applied in the field of vehicles, can solve the problems of wear of the moving plate 32-1 and the static plate 32-2, short service life of the parking brake, etc., and achieve the effect of long service life
Inactive Publication Date: 2020-11-20
吴彬
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
When this parking brake device starts driving before the driver releases the parking brake, the moving plate 32-1 and the static plate 32-2 will wear out at an accelerated rate, and the service life of the parking brake is relatively short.
Method used
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Embodiment Construction
[0010] The present invention will be further described below in conjunction with the accompanying drawings and given embodiments.
[0011] Such as figure 1 As shown, a parking brake device for a vehicle includes an accumulator 31, a parking brake 32, a parking hydraulic cylinder 33 and a manual reversing valve 34; the parking brake 32 includes several moving plates 32-1 and several static piece 32-2; the moving piece 32-1 and the static piece 32-2 are alternately arranged; the right end of the piston rod of the parking hydraulic cylinder 33 is offset against the moving piece 32-1; when the rod cavity of the parking hydraulic cylinder 33 is connected When the pressure oil is injected, the piston rod of the parking hydraulic cylinder 33 moves to the left so that the moving piece 32-1 and the static piece 32-2 are separated, and the vehicle is in the parking brake release state; when the rod cavity of the parking hydraulic cylinder 33 is not connected, When the pressure oil is ...
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The invention discloses a parking brake device of a vehicle and a working method thereof. The parking brake device comprises an energy accumulator, a parking brake, a parking hydraulic cylinder, a manual reversing valve, an electromagnetic valve, a pressure sensor, a Hall sensor, an induction piece and a main controller. An execution port A of the manual reversing valve respectively communicates with the pressure sensor and a first oil inlet P1 of the electromagnetic valve; a second oil inlet P2 of the electromagnetic valve communicates with the energy accumulator, and an execution port A of the electromagnetic valve communicates with a rod cavity of the parking hydraulic cylinder; the wiring end K of the electromagnetic valve, the pressure sensor and the Hall sensor are all in electric connection or wireless communication connection with the main controller; when the pressure value of the pressure sensor is less than the set pressure value in the main controller and the rotating speedvalue of the Hall sensor is larger than 0 rpm, the main controller controls the wiring end K of the electromagnetic valve to be powered on. The parking brake is long in service life.
Description
technical field [0001] The invention relates to a vehicle, in particular to a vehicle parking brake device and a working method thereof. Background technique [0002] Before the vehicle starts to drive, the parking brake needs to be released first, but in practice, it often happens that the driver starts driving before the parking brake is released, so that when the vehicle starts to drive, the static and moving plates of the parking brake will wear out at an accelerated rate, and the parking brake The service life of the brake is shortened. Prior art parking brake devices such as figure 2 As shown, it includes accumulator 31, parking brake 32, parking hydraulic cylinder 33 and manual reversing valve 34; parking brake 32 includes several moving plates 32-1 and several static plates 32-2; moving plates 32-1 and The static plates 32-2 are arranged alternately; the right end of the piston rod of the parking hydraulic cylinder 33 is offset against the moving plate 32-1; when t...
Claims
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IPC IPC(8): B60T13/68
CPCB60T13/745
Inventor 不公告发明人
Owner 吴彬