一种驱动模式切换的防打齿方法、系统、介质及车辆
By monitoring the vehicle's neutral lock status and four-wheel drive shift signal, the system controls the vehicle to revert to high-speed two-wheel drive mode and releases the neutral lock after a successful reversion. This solves the problem of gear grinding after a failed shift, reduces the risk of transmission system damage, and improves driving safety.
CN119641893BActive Publication Date: 2026-07-17GREAT WALL MOTOR CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GREAT WALL MOTOR CO LTD
- Filing Date
- 2024-12-30
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
If the vehicle fails to switch from high-speed two-wheel drive mode to low-speed four-wheel drive mode, the driver may experience gear grinding issues when shifting gears, which could damage the transmission system.
Method used
By monitoring the vehicle's neutral lock status and four-wheel drive shift signals, the system controls the vehicle to revert to high-speed two-wheel drive mode and releases the neutral lock after successful reversion, thus preventing gear shifting during the reversion process.
Benefits of technology
It effectively avoids gear grinding caused by immediately releasing the neutral lock after a failed shift, reduces the risk of damage to the transmission system, and provides clear fault indications and recovery instructions.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN119641893B_ABST
Abstract
本申请实施例提供一种驱动模式切换的防打齿方法、系统、介质及车辆，方法包括：根据车辆的空档锁定状态和四驱换档动作信号的置位状态，控制车辆进行低速四驱模式的切换，并监测切换结果；在切换结果为切换失败的情况下，对换档超时提示信号进行置位；基于换档超时提示信号的置位状态，控制车辆回退至高速两驱模式，并监测回退结果；在回退结果为回退成功的情况下，对四驱换档动作信号退出置位；基于四驱换档动作信号的置位状态，确定是否解除对车辆的空档锁定。旨在防止高速两驱模式回退过程中的打齿问题的出现。
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