P file control method with automatic return function

Abstract

The invention relates to the technical field of automobile control, in particular to a P gear control method with an automatic return function. If the key of the ignition lock is not in the OFF position, and the signal of the intention to lock the P position is received, the shift controller sends a request to the vehicle controller to lock the P position; When the controller receives the signal of the intention to lock the P gear, the shift controller sends a request to the vehicle controller to lock the P gear; gear intention signal, after the specified time, the shift controller will automatically send a request for locking P gear to the vehicle controller; after receiving the lock P gear request, the vehicle controller will judge the vehicle speed. If the vehicle speed is fixed, the P gear controller is controlled to realize the P gear locking. After the vehicle is completely powered off, the P gear can still be automatically locked without human operation to prevent the risk of rolling.

Description

technical field [0001] The invention relates to the technical field of automobile control, in particular to a P gear control method with an automatic return function. Background technique [0002] With the popularity of electric vehicles, more and more consumers choose electric vehicles as a travel tool. As an important part of the safety of electric vehicles, P lock has become the standard configuration of most electric vehicles. The P gear lock locks the gearbox when the vehicle is parked. It can work together with the handbrake or electronic brake to ensure that the vehicle is effectively locked and will not move. When the handbrake or electronic brake fails, it can also prevent the vehicle from rolling. Being in the P gear is also an important condition for the vehicle to be powered on. [0003] At present, many consumers in the process of using the vehicle, because they don’t know much about the working principle of the P gear, will damage the P gear or the gearbox due...

AI Technical Summary

Problems solved by technology

[0003] At present, many consumers in the process of using the vehicle, because they don’t know much about the working principle of the P gear, will damage the P gear or the gearbox due to misuse, or forget to lock the P gear when the power is turned off and stop, causing the vehicle to be locked. There is a risk of slipping the car during parking, which will cause harm to the vehicle itself and surrounding things

Or because you forgot to lock the P gear, when the vehicle is used again, because the gear is not in the P gear, the vehicle cannot be powered on in time, which affects the use

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