Control method, control device, controller and control system for P-gear parking of vehicle and vehicle

Abstract

The invention discloses a control method, control device, controller and control system for P-gear parking of a vehicle and the vehicle. The control method for the P-gear parking of the vehicle comprises the steps of after receiving a P-gear locking instruction, detecting whether the current speed of the vehicle is less than a preset speed threshold value and whether the gradient of a road surfaceon which the vehicle is currently located is greater than a preset gradient threshold value; when detecting that the current speed of the vehicle is less than the preset speed threshold value and thegradient is greater than the preset gradient threshold value, detecting whether an electrical parking brake system of the vehicle is in a parking state; when detecting that the electrical parking brake system is in the parking state, detecting whether a brake is in a stepping-down state; and when detecting that the brake is not in the stepping-down state, controlling the vehicle to execute a P-gear locking action according to the P-gear locking instruction. By means of the control method for the P-gear parking of the vehicle, a P-gear lock can be prevented from being blocked due to the P-gearparking of the vehicle on a slope.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a control method, device, controller, system and vehicle for parking in P gear of a vehicle. Background technique [0002] The P gear is the most common gear in automatic transmission models. It is generally located at the front of the gear console and in front of the R gear. The purpose is to realize that the axle of the front wheel of the vehicle can be locked by the gear when the car is stationary on a ramp. . The "P" in the P gear is derived from the first letter of the English word park, so in the gear positions of automatic transmission cars, the P gear is the sign of the parking gear, and the P gear is evolved on the basis of the N gear. coming gear. When the driver operates the vehicle into the P gear, the vehicle's gearbox will be placed in neutral mode, and the vehicle's P gear lock will be locked. Specifically, the structure of the P gear lock is a pawl provided in...

AI Technical Summary

Problems solved by technology

[0003] The inventor found in the process of implementing the present invention that there are the following technical problems in the prior art: when the vehicle is parked on a slope through the P gear, after the driver releases the brake, the P gear lock will alone bear the burden of the vehicle on the slope. The full downhill force on the slope will easily cause the locking mechanism of the P gear lock to be difficult to pull out after buckling the output shaft of the gearbox and get stuck

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