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
CN107985283AActive Publication Date: 2018-05-04CHERY COMML VEHICLE ANHUI
7 Cites 21 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHERY COMML VEHICLE ANHUI
Publication Date
2018-05-04

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

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.
Need to check novelty before this filing date? Find Prior Art

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More