Control apparatus for controlling a brake system for a vehicle, brake system for a vehicle, method for operating a control apparatus and method for applying brake pressure to at least one brake device of a brake system for a vehicle

Patent metadata

Field	Value
Publication number	US-11787378-B2
Application number	US-201716069255-A
Country	US
Kind code	B2
Filing date	Jan 13, 2017
Priority date	Jan 14, 2016
Publication date	Oct 17, 2023
Grant date	Oct 17, 2023

Abstract

A control apparatus for controlling a brake system for a vehicle, including: an actuable control valve for loading at least one brake device of the brake system with a brake pressure; a pressure container connector for connecting the control apparatus to a pressure container to provide a supply pressure; and a pressure limiting valve which is arranged or can be arranged between the control valve and the pressure container connector to limit the supply pressure to the brake pressure. Also described are a related brake system, a method for operating, a method for loading, a control unit, and a computer readable medium.

First claim

The invention claimed is:

1. A control apparatus for controlling a brake system for a vehicle, comprising:
an electrically actuable control valve for loading at least one brake device of the brake system with a brake pressure;
a pressure container connector for connecting the control apparatus to a pressure container to provide a supply pressure; and
a pressure limiting valve between the control valve and the pressure container connector to limit the supply pressure which prevails at the pressure container connector to the brake pressure, so that the actuable control valve is loadable with the brake pressure via the pressure limiting valve;
wherein the control apparatus is connected to the at least one brake device via a brake device connector,
wherein the pressure limiting valve includes a control valve connector, via which the pressure limiting valve is connected to the actuable control valve,
wherein the actuable control valve is configured to shut off the control valve connector in a rest position so that forwarding of the brake pressure to the brake device connector is prevented, and wherein the actuable control valve is configured to open the brake device connector at the same time as the control valve connector is shut off,
wherein the control valve includes a solenoid valve, which includes a spring-returned solenoid valve having a spring, and wherein in the rest position of the control valve, the spring has a greater length than in an operating position, and the control valve connector is disconnected fluidically from the brake device connector, and
wherein the pressure limiting valve is integrated so as to output a supply pressure which is reduced via a traction control system (ASR) or an electronic stability and protection system (ESP),
wherein the solenoid valve, which is returnable by the spring, is a relay valve for the traction control system, and is configured to forward a brake pressure to the at least one brake device of the brake system,
wherein the pressure limiting valve is part of a supply line of the brake system, and wherein the supply line connects the pressure container to the control valve,
wherein in the operating position of the control valve, the control valve connector and the brake device connector are connected fluidically by the control valve, so that the brake pressure which is provided by the pressure limiting valve is forwarded to the brake device via the control valve, so that the brake device is loaded with the brake pressure and is actuated,
wherein the pressure limiting valve is arranged in the supply line of the control valve, so that the pressure limiting valve opens only above a particular pressure, as a result of which the particular pressure is deducted from a supply pressure when the control valve is switched on, so that the output brake pressure is lower than the supply pressure by the particular pressure, and
wherein the pressure limiting valve is integrated into a front axle controller or a rear axle controller in a region of a store supply arrangement of a magnet assembly for traction control, for outputting the supply pressure which is reduced by the particular pressure via the ASR, the ESP, or an autonomous cruise control system (ACC).

2. The control apparatus of claim 1 , wherein the pressure limiting valve includes a check valve.

3. The control apparatus of claim 1 , further comprising:
an actuating device connector for connecting the control apparatus to an actuating device for actuating the brake system by a driver of the vehicle, the control valve being configured to connect the actuating device connector and the brake device connector to one another fluidically in the rest position and/or to disconnect them from one another fluidically in an operating position.

4. The control apparatus of claim 3 , wherein the control valve is configured to shut off the actuating device connector in the operating position.

5. The control apparatus of claim 1 , wherein the control valve includes two solenoid valves.

6. The control apparatus of claim 1 , wherein the pressure limiting valve includes a check valve, which includes a spring-loaded check valve.

7. The control apparatus of claim 1 , wherein the brake device connector connects the control apparatus to at least one brake device of the brake system, the control valve connector of the pressure limiting valve connecting the pressure limiting valve to the control valve, and the control valve connecting the control valve connector and the brake device connector to one another fluidically in an operating position and/or to disconnect them from one another fluidically in a rest position.

8. A brake system for a vehicle, comprising:
at least one pressure container for providing a supply pressure; and
a control apparatus connected to the pressure container;
wherein the control apparatus includes:
an electrically actuable control valve for loading at least one brake device of the brake system with a brake pressure;
a pressure container connector for connecting the control apparatus to a pressure container to provide a supply pressure; and
a pressure limiting valve between the control valve and the pressure container connector to limit the supply pressure which prevails at the pressure container connector to the brake pressure, so that the actuable control valve is loadable with the brake pressure via the pressure limiting valve;
wherein the control apparatus is connected to the at least one brake device via a brake device connector,
wherein the pressure limiting valve includes a control valve connector, via which the pressure limiting valve is connected to the actuable control valve,
wherein the actuable control valve is configured to shut off the control valve connector in a rest position so that forwarding of the brake pressure to the brake device connector is prevented, and wherein the actuable control valve is configured to open the brake device connector at the same time as the control valve connector is shut off,
wherein the control valve includes a solenoid valve, which includes a spring- returned solenoid valve having a spring, and wherein in the rest position of the control valve, the spring has a greater length than in an operating position, and the control valve connector is disconnected fluidically from the brake device connector, and
wherein the pressure limiting valve is integrated so as to output a supply pressure which is reduced via a traction control system (ASR) or an electronic stability and protection system (ESP),
wherein the solenoid valve, which is returnable by the spring, is a relay valve for the traction control system, and is configured to forward a brake pressure to the at least one brake device of the brake system,
wherein the pressure limiting valve is part of a supply line of the brake system, and wherein the supply line connects the pressure container to the control valve, wherein in the operating position of the control valve, the control valve connector and the brake device connector are connected fluidically by the control valve, so that the brake pressure which is provided by the pressure limiting valve is forwarded to the brake device via the control valve, so that the brake device is loaded with the brake pressure and is actuated,
wherein the pressure limiting valve is arranged in the supply line of the control valve, so that the pressure limiting valve opens only above a particular pressure, as a result of which the particular pressure is deducted from a supply pressure when the control valve is switched on, so that the output brake pressure is lower than the supply pressure by the particular pressure, and
wherein the pressure limiting valve is integrated into a front axle controller or a rear axle controlle

Assignees

• Knorr Bremse Systeme Fuer Nutzfahrzeuge Gmbh

Inventors

• Hecker Falk
• Roether Friedbert

Classifications

• B60T13/68 Primary

  by electrically-controlled valves {(B60T13/662 and B60T13/665 take precedence)} · CPC title

• B60T8/171

  Detecting parameters used in the regulation; Measuring values used in the regulation · CPC title

• B60T13/683

  in pneumatic systems or parts thereof (in vacuum systems B60T13/72) · CPC title

• B60T15/025 Primary

  Electrically controlled valves · CPC title

• B60T15/02

  Application and release valves · CPC title