Controlling method and device for differential lock

A control method and differential lock technology, applied in the direction of control devices, differential transmission devices, electrical control, etc., can solve problems that affect the driver's driving

Active Publication Date: 2018-02-02
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problem in the related art that the driver needs to frequently lock and unlock the differential lock when the car is driving on an off-road surface, which affects the driving of the driver, the present disclosure provides a differential lock control method and installation

Method used

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  • Controlling method and device for differential lock
  • Controlling method and device for differential lock
  • Controlling method and device for differential lock

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Embodiment 1

[0054]An exemplary embodiment of the present disclosure provides a differential lock control method, wherein the differential lock is applied in the technical field of automobiles and is a device for locking a differential, and the differential refers to a device that connects two A mechanism that enables the two driving wheels to rotate at different speeds. For example, for a differential that connects the left and right driving wheels, it mainly includes a left side gear, a right side gear, multiple planetary gears, and a planetary carrier. Wait. When the car is turning or running on an uneven road, the left drive wheel and the right drive wheel are rotated at different speeds to reduce the wear of the wheels.

[0055] However, when the car is running on off-road surfaces such as muddy roads, the differential becomes an obstacle for the car to move forward. Specifically, when the car is running on muddy roads, when one drive wheel slips, the other drive wheel slips. When st...

Embodiment 2

[0080] Yet another exemplary embodiment of the present disclosure provides a differential lock control device, which may be the controller described in Embodiment 1, such as Figure 5 As shown, the device includes an unlocking module 510 and a locking module 520, wherein:

[0081] The unlocking module 510 is configured to detect a current steering angle of the steering wheel, and if the current steering angle is greater than a preset steering angle and the differential lock is in a locked state, control the differential lock to be unlocked;

[0082] The locking module 520 is configured to detect the current speed difference between the two transmission shafts connected to the differential lock and the current vehicle speed, if the current speed difference is greater than the preset speed difference, the current vehicle speed is less than the first preset speed , and the differential lock is in an unlocked state, then control the differential lock to lock.

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Abstract

The invention discloses a controlling method and device for a differential lock, and belongs to the technical field of automobile electronic controlling. The controlling method comprises the steps that a controller detects the current steering angle of a steering wheel, and if the current steering angle is greater than the preset steering angle and the differential lock is in a locked state, thenthe differential lock is controlled to be unlocked; and the current revolving speed difference between two transmission shafts for being connected with the differential lock and the current automobilespeed are detected through the controller, and if the current revolving speed difference is greater than the preset revolving speed difference, the current automobile speed is smaller than the firstpreset speed and the differential lock is in an unlocked state, then the differential lock is controlled to be locked. According to the controlling method, the method of automatically controlling unlocking and locking of the differential lock by the controller is intelligent, a driver does not need to frequently control a differential lock button on an off-road road, and normal driving of the driver is not affected.

Description

technical field [0001] The present disclosure relates to the technical field of automotive electronic control, in particular to a differential lock control method and device. Background technique [0002] A differential refers to a mechanism that connects two drive wheels and enables the two drive wheels to rotate at different speeds. For example, for a differential that connects left and right drive wheels, it mainly includes left side gears, right side gears, Multiple planetary gears and planetary carriers, etc. When the car is turning or running on an uneven road surface, the left drive wheel and the right drive wheel are rotated at different speeds. [0003] However, when the car is running on off-road surfaces such as muddy roads, the differential becomes an obstacle for the car to move forward. Specifically, when the car is running on muddy roads, when one drive wheel slips, the other drive wheel slips. When stuck, because the differential allows the driving wheels t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K17/16F16H48/20F16H59/50F16H59/44F02D41/30
CPCB60K17/16B60K17/20F02D41/30F02D2200/101F16H48/20F16H59/44F16H59/50F16H2048/204F16H2048/205
Inventor 杨德凤
Owner CHERY AUTOMOBILE CO LTD
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