Brake fluid pressure sensor
A brake fluid pressure sensor senses the brake fluid pressure in a hydraulic braking system. The sensor is a type of pressure switch that shows and alerts a fault in the braking system.[1]
Brake problems
[edit]The fault could be lack of hydraulic fluid, low brake fluid in the reservoir, a broken hydraulic line or a bad master brake cylinder. The sensor is used to detect pressure differentials in the hydraulic system. If the car alerts a fault in the hydraulic system and the system checks out, the sensor itself may have failed.[2]
Design
[edit]The sensor has an input port to measure the hydraulic braking pressure and an electrical connector output for a wire connection for feeding the warning light. Some brake failures do not trip the sensor into a fault mode.
A brake fluid pressure sensor is used in anti-lock braking system (ABS). ABS fault lights come on with unexpected wheel lock from the ABS system, but could also include low fluid in the reservoir.[3][4][5][6]
New accident avoidance technologies system also use brake fluid pressure sensors.[7]
Many large heavy vehicles, like trucks, particularly those having multiple trailers use air brakes that use air pressure sensors.
Examples
[edit]-
Mechanical Pressure Switch with integrated connector -
Mechanical Pressure Switch with Plug-in connector
See also
[edit]References
[edit]- ^ brake fluid pressure sensor, ecutesting.com
- ^ What is a brake fluid pressure sensor? Sep 30, 2022, brake-cylinder.com
- ^ nhtsa.gov, National Highway Traffic Safety Administration, DOT HS 811 251, April 2010, Human Performance Evaluation of Light Vehicle Brake Assist Systems, page 33
- ^ 2017 CT.gov Commercial Vehicle Safety Alliance, Hydraulic Brake System and Trailer Brake Inspection Procedure, 2012
- ^ Mazda Mazda CX-5 Service & Repair Manual, DSC HU/CM
- ^ rake pressure sensor fault: What should you do?, actronics.co.uk
- ^ DEVELOPMENT OF THE NISSAN ASV-2, Shinji Matsumoto, Toru Yasuda Takeshi Kimura, Taku Takahama, Hiromitsu Toyota, Nissan Motor Co., Ltd., Japan, Paper Number: 382, accident avoidance technologies
