Pressure sensor and vehicle brake control device

Abstract

The invention discloses a pressure sensor and a vehicle brake control device. The pressure sensor comprises a sensor shell, a pressure sensing module, a sensor circuit board, a conducting strip and a spring, the sensor shell is fixedly connected with an external circuit board, and a metal sheet is arranged on the lower surface of the external circuit board; a control electronic device is arranged on the upper surface of the external circuit board; the pressure sensing module is in sealed connection with the sensor shell, a flow guide hole is further formed in the sensor shell, and the pressure sensing module is communicated with the flow guide hole; the lower surface of the sensor circuit board is connected with the pressure sensing module, and the upper surface of the sensor circuit board is connected with the conducting strip; the lower end of the spring is in contact with the conductive sheet, and the upper end of the spring is in contact with the metal sheet; the installation is reliable, the operation is convenient, and the standardized production and popularization are facilitated.

Description

technical field [0001] The invention relates to the field of brake systems, in particular to a pressure sensor and a vehicle brake control device. Background technique [0002] Currently, the EBS of a commercial vehicle includes a master brake valve, a main controller, a pressure regulation module, etc. When the driver depresses the brake pedal, the main controller detects the change value of the displacement sensor in the brake master valve connected to the pedal, and then uses the change value to determine how much brake pressure needs to be provided to the brake and requests the pressure regulation module working. The pressure regulating module realizes the establishment and regulation of the brake pressure by energizing or de-energizing the solenoid valve (including normally open solenoid valve and normally closed solenoid valve). [0003] The structure schematic diagram of the vehicle braking control device with pressure sensor currently used is as attached to the ins...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is that in the existing vehicle brake control device, the pressure sensor and the external circuit board are fixed only by the solder on the cylindrical pin, and fatigue and loosening will occur during the alternating pressure, resulting in failure, and The steps in the production process are cumbersome and affect the production efficiency. Therefore, a pressure sensor and a vehicle brake control device are provided. The pressure sensor includes:

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