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Electric parking brake having a control element for switching into a service mode

A parking brake, parking brake technology, applied in the direction of brakes, brake transmissions, manual starting devices, etc., can solve the problem of mechanical load damage to actuators and transmission units or can record a fault in the braking system, etc.

Active Publication Date: 2014-06-04
CONTINENTAL AUTOMOTIVE TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Furthermore, it is known that the electric parking brake cannot always be brought directly into the fully open position mechanically.
Because the emergency release of the brake mechanism can subject the actuator as well as the transmission unit to a very high mechanical load and can be damaged as a result or a fault can be registered in the brake system, which leads to a registered fault position
But the fault location cannot be corrected without special diagnostic equipment

Method used

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  • Electric parking brake having a control element for switching into a service mode
  • Electric parking brake having a control element for switching into a service mode

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0022] figure 1 A block diagram of an electric parking brake 1 according to the invention is shown schematically. Electric parking brakes are used, for example, in motor vehicles, especially limousines, buses and trucks. In contrast to mechanically actuated parking brakes, which are actuated by means of a handle or a foot pedal, in the case of electric parking brakes the brake mechanism is activated by an electrical signal. In this case, the activation by the driver generally takes place by operating a corresponding electrical switch or key. An actuator then operates a cable or a transmission by means of the transmission, with which the brake pad is pressed against the brake drum or the brake disc of the parking brake.

[0023] According to the electric parking brake 1 of the present invention according to figure 1 There is a control unit 8 which is basically programmed. In this case, the control unit 8 processes the incoming signals and determines corresponding control si...

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PUM

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Abstract

During service and repair work on an electric parking brake (1) of a motor vehicle, there is the problem that, in order to switch into a service mode in which the parking brake (15) can be completely opened, in order for example to be able to exchange a brake cable, a special diagnosis unit must generally be used. A diagnosis unit of this type is however not always available in workshops. It is therefore proposed to carry out the switch into the service mode of the electric parking brake (1) with at least one control element (2,2a) of the motor vehicle. Here, it is provided that, for safety reasons and in order to avoid an undesired switch into the service mode, the actuation of the at least one control element (2, 2a) must take place according to a predefined input procedure.

Description

technical field [0001] The invention relates to an electric parking brake of a motor vehicle, wherein in an operating mode at least one actuator applies or releases at least one wheel brake of the parking brake by means of a brake mechanism. In electric parking brakes, as in conventional mechanical parking brakes, there are system requirements that the mechanical braking system can be maintained, for example the brake cable or / and the braking system must be replaced, renewed or readjusted. moving block. For this purpose, it is necessary to control the parking brake in a maintenance mode by means of a release function into a fully open position, so that no force acts on the brake cable and the brake mechanism. In contrast to conventional mechanical parking brakes, with electric parking brakes the fully open position cannot be adjusted mechanically in a simple manner. Instead, the electric parking brake needs to be brought into the fully open position electrically with a corre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60T7/10B60T13/74
CPCB60T7/107B60T13/746B60T7/10B60T13/74B60T7/08
Inventor J·本特纳A·卡尔贝克N·拉博迈耶
Owner CONTINENTAL AUTOMOTIVE TECH GMBH
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