Drive control device for a motor vehicle which is also equipped with an anti-blocking system

US4480309A · kind A · utility

Assignee

• Daimler-Benz AG · DE

Inventors

• Manfred Burckhardt
• J/u/ rgen Paul · Stuttgart, DE
• Franz Brugger · Winnenden, DE

Key dates

• Filing date: Oct 14, 1982
• Grant date: Oct 30, 1984
• Expiry date: Oct 14, 2002

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60W30/1819
• WIPO field: Transport
• WIPO sector: Mechanical engineering

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 If necessary, both driving wheel brakes are activated with a time delay and the engine torque withdrawn.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 …