P-gear automatic parking control method based on EPB-ESP (electronic parking brake-electronic stability program) linkage

A control method and automatic parking technology, which is applied in the field of vehicle engineering, can solve the problems of incorrect operation and cumbersome operation of the driver, and achieve the effect of improving the stress situation and prolonging the service life

Active Publication Date: 2018-05-04
CHERY COMML VEHICLE ANHUI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The correct operation steps can certainly solve this problem, but due to the cumbersome operation, many drivers do not operate correctly, which leads to the above problems

Method used

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  • P-gear automatic parking control method based on EPB-ESP (electronic parking brake-electronic stability program) linkage
  • P-gear automatic parking control method based on EPB-ESP (electronic parking brake-electronic stability program) linkage
  • P-gear automatic parking control method based on EPB-ESP (electronic parking brake-electronic stability program) linkage

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Embodiment Construction

[0032] The specific implementation of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0033] The terms used in this article mean:

[0034] EPB——electronic parking brake system;

[0035] ESP - Electronic Body Stability System;

[0036] ABS - anti-lock braking system;

[0037] TCS (ASR)——automobile active safety device, also known as traction control system;

[0038] MOC - electronic parking caliper, or electronic parking actuator;

[0039] ECU - electronic control unit;

[0040] TCU - automatic transmission.

[0041] Reasonably optimize the control method of a P-block automatic parking function of EPB. With the help of ESP's active pressurization and pressure-holding functions, the P-block automatic parking can ...

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Abstract

The invention discloses a P-gear automatic parking control method based on EPB-ESP (electronic parking brake-electronic stability program) linkage. According to the method, when the speed of a vehicleis lower than or equal to 3Km / h, a gear lever is pushed to a P-gear position, and P-gear signals are transmitted to a CAN (controller area network) by an automatic gearbox. When an electronic stability program detects that vehicle speed and the P-gear signals simultaneously meet conditions, active pressurization is instantly performed, pressure is kept for a certain time, and the vehicle is completely static, so that a P-gear locking mechanism has no rigid impulse. When an electronic parking brake detects that the vehicle speed and the P-gear signals simultaneously meet conditions, clamping is instantly performed, and the vehicle is completely parked within pressure keeping time set by the electronic stability program. The method can avoid the problem of locking of a P-gear lock cylinderand a P-gear lock groove caused by faulty operation of a driver and solves the problem that abnormal sound is generated as P-gear unlocking is performed after the vehicle is parked on ramps in the running process of the vehicle, stress conditions of the locking mechanism are improved, and the service life of the automatic gearbox is prolonged.

Description

technical field [0001] The invention belongs to the technical field of vehicle engineering. More specifically, the present invention relates to a P gear automatic parking control method based on EPB-ESP linkage. Background technique [0002] With the rapid development of science and technology, more and more electronic control systems are applied to cars, and people put forward higher requirements for the reliability, safety and comfort of cars. The popularity of automatic transmission cars has greatly alleviated driving fatigue. [0003] Existing technology: patent document CN201410495451.7 records the technical solution of "vehicle and P-block parking control method and system for vehicle"; patent document CN201620629977.4 records "P-block parking mechanism and its control system" Technical solutions. [0004] The P gear is the parking gear (Parking) of an automatic transmission car, also called the parking gear. The structure and working principle of the P gear lockin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T7/12
CPCB60T7/12
Inventor 任思路黄巨成代立宏鲍思语朱亚伟程诗瀚
Owner CHERY COMML VEHICLE ANHUI
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