Automatic standstill brake for a motor vehicle equipped with an automatic transmission

US5415467A · kind A · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Hermann Utz · Ettlingen, DE
• Stefan Witte · Minden, DE

Key dates

• Filing date: Oct 22, 1993
• Grant date: May 16, 1995
• Expiry date: Oct 22, 2013

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16H59/54
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The invention is directed to an automatic standstill brake for motor vehicles equipped with an automatic transmission wherein a braking pressure is generated at the wheel-brake cylinders via devices operating on the brake circuit of the motor vehicle. The automatic standstill brake prevents a rolling of the motor vehicle when at standstill. The standstill brake operates when the motor vehicle has come to standstill and the driver has released the brake pedal so that it goes into its rest position. The standstill brake includes a computer which provides an output for a signal transmitter which supplies an actuating signal which, in turn, is applied to the devices operating on the brake circuit thereby causing the standstill brake to become engaged or disengaged. The computer forms the output thereof from the input signal of a sensor for the actual speed of the motor vehicle, an input signal of a sensor for the actuation of the brake pedal and an input signal of a sensor for the actuation of the accelerator pedal.