Forward wheel drive passenger vehicle tire burst control method

A control method and technology for passenger cars, applied to safety devices of power plant control mechanisms, tractors, motor vehicles, etc. Sudden changes in speed, guaranteed driving safety, and automatic deviation correction

Pending Publication Date: 2019-11-29
李加林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the direction of the front-drive passenger car is out of control when the driving wheel is blown out, the present invention proposes a method for controlling the blowout of the front-drive passenger car, which can eliminate the difference in wheel diameter between the drive wheel and the normal drive wheel. sudden change in driving line speed

Method used

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  • Forward wheel drive passenger vehicle tire burst control method
  • Forward wheel drive passenger vehicle tire burst control method
  • Forward wheel drive passenger vehicle tire burst control method

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Such as Figure 1 ~ Figure 3 As shown, a tire blowout control method for a front-drive passenger car. When the vehicle detects that a tire blowout has occurred in the driving wheel, the torque and speed output by the vehicle's own differential 1 are used to accelerate the speed of the blown driving wheel, so that The driving speed of the blown tire driving wheel is consistent with that of the normal driving wheel, and the driving force is balanced.

[0028] Said using the torque output by the vehicle's own differential 1 and the rotational speed to accelerate the rotational speed of the punctured wheel includes: when the detection result is that the left driving wheel 2 is punctured, on the one hand, the kinetic energy of the left driving wheel 2 punctured moment continues to It forms traction force by itself, on the other hand, the control unit 3 of described vehicle immediately cuts off the power connection between the left driving wheel 2 and the differential gear 1 ...

Embodiment 2

[0035] The difference between the second embodiment and the first embodiment is that when the vehicle detects that the tire of the driving wheel is blown out, the normal driving wheel is decelerated by using the torque and the rotational speed output by the differential 1 of the vehicle itself; the normal driving wheel is decelerated The principle is the same as the principle of accelerating the tire blown drive wheel, so no more details here.

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Abstract

The invention relates to a forward wheel drive passenger vehicle tire burst control method. After a vehicle detects that a tire of a driving wheel is burst, the rotation speed of a tire burst drivingwheel is increased or the rotation speed of a normal driving wheel is reduced by using a torque and a rotation speed output by a differential device of the vehicle so that the running speed of the tire burst driving wheel is consistent with the running speed of the normal driving wheel and the driving force of the tire burst driving wheel is balanced with the driving force of the normal driving wheel. According to the forward wheel drive passenger vehicle tire burst control method, an accelerator is reasonably started to increase the angular speed of the tire burst driving wheel on the basis of a running data difference between the tire burst driving wheel and the normal driving wheel, running linear speed sudden change caused by wheel diameter difference between the tire burst driving wheel and the normal driving wheel is eliminated so that the rotation speeds of the tire burst driving wheel and the normal driving wheel are relatively kept within a safe reasonable range; and the forward wheel drive passenger vehicle tire burst control method aims at eliminating accident potentials such as running direction deflection and vehicle runaway caused by tire burst of a forward wheel drive passenger vehicle driving wheel.

Description

technical field [0001] The invention relates to the technical field of automobile engineering, in particular to a tire blowout control method for a front-drive passenger car. Background technique [0002] We know that after the tire loses the air pressure, its impact on the driving of the vehicle is mainly manifested in: on the one hand, the effective driving radius of the wheel decreases instantaneously, and the rolling linear velocity of the wheel decreases instantaneously under the condition of constant speed; on the other hand, the tire loses The running resistance of the wheel suddenly increases after the pressure is dry, resulting in a sharp decrease in the rolling angular velocity and linear velocity of the tire. For front-wheel-drive passenger cars, the differential on the front axle is an equal-torque transmission. When one side of the driving wheel blows out, the driving resistance increases, and the normal driving wheel on the other side will obtain a relatively h...

Claims

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Application Information

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IPC IPC(8): B60K28/16B60R16/023
CPCB60K28/165B60R16/0232
Inventor 李加林
Owner 李加林
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