Driver assistance system for vehicle, in particular commercial vehicle, and method for controlling brake system

A driver assistance and braking system technology, applied in the direction of brakes, vehicle components, vehicle safety arrangements, etc.

Active Publication Date: 2012-08-29
ZF CV SYST EURO BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

An external request for pretensioning without a braking effect or a significant braking effect would therefore require a special command set which is not possible with current systems

Method used

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  • Driver assistance system for vehicle, in particular commercial vehicle, and method for controlling brake system
  • Driver assistance system for vehicle, in particular commercial vehicle, and method for controlling brake system
  • Driver assistance system for vehicle, in particular commercial vehicle, and method for controlling brake system

Examples

Experimental program
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Embodiment Construction

[0021] Vehicle 1 is traveling in direction of travel F on roadway 2 . The vehicle 1 is here a commercial vehicle with three axles and thus six wheels 3 - 1 , 3 - 2 , 3 - 3 , 3 - 4 , 3 - 5 and 3 - 6 . Its braking system 4 has pneumatic brakes 4-1, 4-2, 4-3, 4-4, 4-5, 4-6, each acting on the wheels 3-1 to 3-6, so that the vehicle 1 For example, braking can be done wheel-wise or axle-wise. In this case, for example, a common compressed air reservoir (not shown) for all brakes 4 - 1 to 4 - 6 is provided or, also in the case of a two-channel brake system, correspondingly two such compressed air reservoirs are provided. Reservoir for compressed air supply to pneumatic brakes 4-1 to 4-6. The brake system 4 also has a brake control device 6 which, in particular, can be designed as a control device known per se. In principle, however, the brake control device 6 can also be formed by a plurality of units. The brake control device 6 receives the brake request signal S1 from a brake v...

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PUM

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Abstract

The invention relates to a driver assistance system for a vehicle, in particular a commercial vehicle, wherein the driver assistance system (14) has: a detection system which has at least one sensor (15-1, 15-2, 15-3) for issuing measuring signals (S5-1, S5-2, S5-3), a control unit (16) for receiving the measuring signals (S5-1, S5-2, S5-3) and for determining the probability of a critical situation or critical state of the vehicle (1), wherein, when a critical state or sufficient probability of a critical state is identified, the control unit (16) of the driver assistance system (14) outputs a signal (S6) for priming a brake system (4) to a brake control device (6) of the brake system (4) of the vehicle (1), and wherein the control unit (16) outputs an external brake request signal (S6) for initiating braking operations to the brake control device (6) of the brake system (4). According to the invention, in order to prime the brake system (4), the control unit (16) outputs an external brake request signal (S6) which has a desired acceleration value signal (S6-3) with a higher desired acceleration value (a-soll) than a current actual acceleration value (a-ist).

Description

technical field [0001] The invention relates to a driver assistance system for a vehicle, in particular a commercial vehicle, a vehicle system having such a driver assistance system, and a method for controlling a braking system. Background technique [0002] Driver assistance systems are generally used to support the driver in his driving task in the vehicle controlled by him. These driver assistance systems may in particular be environment recognition systems which detect foreign objects by means of suitable sensors in order to modify the driving behavior of the vehicle accordingly. In this case, on the one hand, a collision with a detected external object can be prevented or the severity of the accident can be reduced by appropriately braking the vehicle. Furthermore, preceding vehicles can be detected and distance control can be carried out, for example as ACC (Adaptive Cruise Control) or also as platooning of vehicles in a convoy of several vehicles. In particular, ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T8/1755B60T8/32
CPCB60R2021/0104B60R2021/01259B60T7/22B60T8/17558B60T8/4818B60T17/22B60T2201/02B60T2201/12B60W30/085B60W30/10B60W30/14B60T8/1755B60T8/32
Inventor 卡斯藤·布罗伊尔托马斯·迪克曼托尔斯滕·瓦尔鲍姆
Owner ZF CV SYST EURO BV
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