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Anti-skid control device for a vehicle having an electromotive drive system

A vehicle drive device and vehicle technology, applied in the direction of electrical devices, power devices, electric vehicles, etc., can solve the problem of the loss of traction potential of the drive wheel, and achieve the effect of direct speed limit and realization of speed limit

Active Publication Date: 2014-01-08
AUDI AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the drive slip control with brake intervention has the disadvantage that the drive wheels are often braked too strongly and thus lose traction potential

Method used

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  • Anti-skid control device for a vehicle having an electromotive drive system

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Embodiment Construction

[0014] exist figure 1 In the exemplary embodiment shown in , a drive system for a four-wheel vehicle with single-wheel drive is shown in a block diagram. Drive wheels AR1 to AR4 are driven by correspondingly assigned electric drive motors M1 to M4 . The drive motors M1 to M4 are supplied with a three-phase current by the correspondingly assigned converters U1 to U4 . On the input side, converters U1 to U4 are connected to supply voltage UV. At control inputs S1 to S4 , converters U1 to U4 are connected to ASR controller ASR and a further controller SG, which may be a motor controller of the vehicle. Furthermore, the ASR controller ASR and the controller SG are connected via control lines to the sensor units SE1 to SE4 , which forward drive-specific information to the controllers ASR and SG. In particular, the wheel speeds of the drive wheels AR1 to AR4 are detected by the sensor units SE1 to SE4 , from which the peripheral speeds of the drive wheels AR1 to AR4 can be calcul...

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Abstract

The invention relates to an anti-skid control device for a vehicle having an electromotive drive system that comprises one or more electric driving motors (M1 to M4). In order to limit wheel slip, the rotational speed of the driving wheels (AR1 to AR4) is regulated by controlling the rotational speed of the rotary field generated in at least one electric driving motor, each electric driving motor (M1 to M4) being fed by a controllable converter (U1 to U4) associated therewith. In order to control the rotational speed, the anti-skid control device (ASR) constantly informs each converter (U1 to U4) about the maximum allowed rotational speed of the driving motor (M1 to M4) or driving wheel (AR1 to AR4) associated with the respective converter (U1 to U4).

Description

technical field [0001] The invention relates to a system for driving slip control for a vehicle with an electric vehicle drive according to the preamble of claim 1 . Background technique [0002] The system for Anti-Slip Control (ASR) is intended to prevent the drive wheels from slipping during acceleration. Furthermore, the aim is to achieve the best possible acceleration for the vehicle on the one hand and, on the other hand, not to have an unnecessarily strong influence on the driving stability of the vehicle during acceleration. In addition, the drive slip control system is intended to prevent sudden steering at the rear in vehicles with rear drive and to preserve steering behavior in vehicles with front drive. [0003] If the wheels spin excessively during acceleration, the drive antiskid control system can intervene in principle in two ways. If, for example, the drive shaft overall has too high a slip, the engine torque can first be reduced by the engine control. Ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/10B60K7/00
CPCB60K7/0007B60L2260/28Y02T10/648B60L2240/461B60L3/102B60L3/106B60L2220/42B60L2220/46B60L2240/465B60L15/2072Y02T10/64Y02T10/72
Inventor S·洛斯D·赫希曼B·克莱克曼
Owner AUDI AG
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