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Electrohydraulic vehicle power brake system for an autonomously driving land vehicle

A technology for vehicle braking and autonomous driving, used in automatic starting devices, brakes, brake components, etc.

Pending Publication Date: 2020-12-11
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Level 5 is also known as full automation and does not require a driver

Method used

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  • Electrohydraulic vehicle power brake system for an autonomously driving land vehicle

Examples

Experimental program
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Embodiment Construction

[0016] The electrohydraulic power-assisted vehicle brake system 1 according to the invention shown in the figures is intended for land vehicles, ie passenger cars, which are autonomously driven up to class 4 or class 5 on public roads. Level 4 represents autonomous driving where driver intervention may be required, while level 5 represents the highest level, ie autonomous driving that does not require driver intervention. Lower levels and non-autonomous driving are also possible.

[0017] The vehicle brake system 1 according to the invention is designed as a dual-circuit vehicle brake system with four hydraulic wheel brakes 2 , wherein the two hydraulic wheel brakes are each connected to one of the two brake circuits I, II.

[0018] The vehicle brake system 1 has a booster brake pressure generator 3 to which the two brake circuits I, II are connected via solenoid valves referred to here as booster valves 4 , 31 , 32 . It can also be understood that the first brake circuit I o...

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PUM

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Abstract

The invention relates to an electrohydraulic booster vehicle brake system (1) for a motor vehicle traveling autonomously on a public road. According to the invention, a booster brake pressure generator (3) of a booster vehicle brake system (1) is connected to the vehicle brake system (1) by means of two hydraulically parallel booster valves (4, 31) and the two booster valves (4, 31) are controlledby means of two redundant electronic controllers (10, 11).

Description

technical field [0001] The invention relates to an electrohydraulic power-assisted vehicle braking system for land vehicles traveling autonomously on public roads up to class 4 or class 5, having the features of the preamble of claim 1 . The designation "autonomous driving" refers to the possibility of autonomous driving, but the vehicle brake system according to the invention can also be used for land vehicles which do not travel autonomously or for land vehicles which travel autonomously to a lower level. Background technique [0002] To achieve level 4 (driver may be required to intervene) and level 5 (highest level, no driver required) autonomous driving requires redundant power-assisted vehicle braking Probability of ruling out complete failure of the vehicle's brake system without driver intervention. [0003] Laid-open document DE 10 2014 220 440 A1 discloses an electrohydraulic power-assisted vehicle braking system with two brake units each having a power-assisted b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T13/66B60T13/68B60T13/74B60T8/40
CPCB60T8/40B60T13/662B60T13/686B60T13/745B60T7/22B60T2270/413B60W10/18B60Y2400/81B60W60/001B60T7/12B60T8/17B60T13/141B60T13/167B60T13/20B60T13/62B60T2270/402B60T2270/403
Inventor M.布兰德B.迈尔S.施特伦格特
Owner ROBERT BOSCH GMBH