Method for controlling the speed of a vehicle

A regulation method and technology for vehicle speed, applied in control/regulation systems, speed/acceleration control, motor vehicles, etc., to enhance braking effect, improve driving comfort, and save fuel

Inactive Publication Date: 2008-09-17
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical solution to the above-mentioned task lies in a method for adjusting the speed of an automobile, wherein, when the actual speed of the automobile exceeds a predetermined rated speed by more than a first predetermined speed difference, the normal brake of the automobile is activated; the first predetermined speed difference is greater than zero

Method used

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  • Method for controlling the speed of a vehicle
  • Method for controlling the speed of a vehicle
  • Method for controlling the speed of a vehicle

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Embodiment Construction

[0019] figure 1 10 denotes a controller of the vehicle, which is connected to a service brake 1 of the vehicle (it is generally a friction brake subject to wear), an idle speed regulator 5, one or more auxiliary units 15 and a The travel speed regulator 20 is connected. Furthermore, a speed measuring device 25 is provided, which measures the actual speed of the vehicle and is connected to the vehicle control unit 10 and the driving speed regulator 20 . The vehicle controller 10 and the driving speed regulator 20 receive the current actual speed of the vehicle from a speed measuring device 25 .

[0020] In this exemplary embodiment, the vehicle controller 10 is an extended engine controller which additionally serves to control the engine of the vehicle and the service brake 1 of the vehicle.

[0021] In the starting state, driving speed regulator 20 outputs a torque request to vehicle control unit 10 , which is converted in a manner not shown by, for example, a corresponding ...

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Abstract

A method for controlling the speed of a vehicle, the method making it possible to maintain a predefined setpoint speed even on downhill grades. In the event that the actual speed of the vehicle exceeds the predefined setpoint speed by more than a first predefined speed difference, a service brake of the vehicle will be activated.

Description

technical field [0001] The invention relates to a method for adjusting the speed of an automobile. Background technique [0002] DE 195 37 273 A1 is known to control a wear-free additional reduction gear such as a gear unit with speed regulation. For this reason, retarders and engine brakes can be used to keep the speed of the vehicle constant on slopes where the action of engine control alone is sometimes not sufficient to maintain low speeds. Therefore, the additional deceleration device is different from the common brake of the car. Contents of the invention [0003] In contrast, the present invention aims at proposing a method for regulating the speed of a vehicle, which has the advantage of activating the service brake of the vehicle when the actual speed of the vehicle exceeds a predetermined rated speed by more than a first predetermined speed difference. In this way, the function of the speed regulation of the motor vehicle can be enlarged, so that the speed, for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60K31/00B60T7/12B60W10/18B60W20/00B60K31/04B60T8/00B60T13/66B60W10/06B60W30/14
CPCB60W10/06B60K31/04B60T2201/04B60W2710/065B60T7/122B60W10/18B60W30/143B60K2741/205B60W10/04B60W30/1819
Inventor E·洛克C·米尔鲍尔M·库斯托施
Owner ROBERT BOSCH GMBH
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