Drive control device for a motor vehicle which is also equipped

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303 93, 303 96, 303111, B60T 1368

Patent

active

044803095

ABSTRACT:
A drive control device for a motor vehicle with rear axle drive and equipped with an anti-blocking system. As part of a rotational speed sensor arrangement provided to determine the state of movement of the vehicle wheels, each of the non-driving front wheels has an associated rotational speed sensor and the two rear wheels have a common rotational speed sensor, which measures the rotational speed of the propeller shaft in the transmission system. A hydraulic actuator provided for brake pressure control corresponds in construction to that of a 4 channel anti-blocking system. These components are utilized for both the drive control and the anti-blocking control. An electronic control system of the drive control device, which processes the output signals of the rotational speed sensors, initially activates the right-hand rear wheel brake, as soon as a driving wheel starts to spin. If the vehicle does not accelerate in consequence or if, indeed, there is a deceleration of the vehicle, switching occurs to the left-hand driving wheel brake either with a time delay or immediately. If necessary, both driving wheel brakes are activated with a time delay and the engine torque withdrawn. In the case of travel around a curve, the control cycle is introduced by braking the driving wheel on the inside of the curve.

REFERENCES:
patent: 4088376 (1978-05-01), Lindemann et al.
patent: 4093317 (1978-06-01), Lindemann et al.
patent: 4291924 (1981-09-01), Leiber et al.

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