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Brake actuation unit

A technology of brake operation unit and drive unit, which is applied in the direction of brake, brake transmission, transportation and packaging, etc., and can solve the problems of impairing driving comfort and so on

Inactive Publication Date: 2011-02-23
CONTINENTAL TEVES AG & CO OHG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] A disadvantage of this known brake actuating unit is the type of force transmission between the pressure lever actuated by the driver and the output of the booster stage, which takes place by direct mechanical contact of the individual components
Due to the above-mentioned mechanical impact of the piston rod and the spindle on the primary piston of the brake master cylinder, the driving comfort is significantly impaired, especially during strong braking.

Method used

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Embodiment Construction

[0010] exist figure 1 The brake actuating unit shown in axial section in the figure essentially comprises a brake master cylinder 1, preferably a tandem master cylinder, a booster stage 2 operatively connected upstream of the brake master cylinder 1, and a drive unit 3. The drive unit 3 is used to drive the booster stage 2 and consists of an electric motor 23 . For actuating the brake operating unit according to the invention, there is provided a brake pedal, not shown, to which a piston rod 4 is connected, said piston rod 4 being connected to the first piston or the primary side of the brake master cylinder 1. Piston 11 power transmission connection. The second or secondary piston of the brake master cylinder has the reference numeral 26, wherein the two master cylinder pistons 11, 26 in turn delimit a pressure chamber (not shown in detail), which is connected to the wheel brakes of the motor vehicle. connected. The booster stage 2 is driven by means of a first reduction g...

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Abstract

The invention relates to a brake actuation unit for motor vehicles, comprising a brake master cylinder, a booster stage connected in front of the brake master cylinder and a drive unit for driving the booster stage. According to the invention, to permit convenient braking manoeuvres, the transmission of both the actuation force and the booster force on the main piston (11) of the master brake cylinder (1) is achieved by a force transmission module (9) that has at least one elastic element (8) and that is situated in the main piston (11).

Description

technical field [0001] The invention relates to a brake actuating unit comprising a brake master cylinder actuatable by means of a brake pedal, a booster stage connected upstream of the brake master cylinder and a drive for driving the booster stage unit, the brake master cylinder is connected with the wheel brakes of the motor vehicle, the drive unit includes an electric motor, wherein a device for transmitting operating force is provided between the brake pedal and the primary piston of the brake master cylinder wherein, the booster stage is arranged in the booster housing and has a first reduction transmission mechanism, the first reduction transmission mechanism is composed of a ball screw transmission mechanism, and the nut of the ball screw transmission mechanism Driven by the electric motor through the second reduction transmission mechanism, the lead screw of the ball screw transmission mechanism converts the supercharging force / assisting force generated by the booster...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/74
CPCB60T13/745
Inventor U·巴赫R·拜尔J·博姆H·冯海因J·容贝克S·林肯巴赫J·巴彻尔M·福格特W·里特尔M·吕费尔
Owner CONTINENTAL TEVES AG & CO OHG