Automotive Research & Testing Center

Chien-Tzu Chen

Shou-Ti Cheng

Chien-Tai Huang

Yan-Sin Liao

Bo-Ruei Chen

Jiun-Jie Chen

Shih-Chieh Huang

Fu-Yen Huang

Ming-Hu Huang

A transmission device includes a mounting frame having an abutting member, a driving sleeve sleeved fixedly on a drive shaft extending through the base plate, a transmission wheel sleeved rotatably on the driving sleeve, and a connecting post extending through a radially extending through hole in the transmission wheel and into a spiral first guiding groove in the driving sleeve having opposite first and second ends. A position-limiting member is disposed rotatably on a side surface of the transmission wheel. A ball is disposed in a ball-receiving hole in the position-limiting member and is movable in a curved second guiding groove in the side surface of the transmission wheel having a shallower first end and a deeper second end. When the drive shaft rotates regularly and reversely, the ball is spaced apart from the abutting member.

Transmission device

A system for evacuating gas from a brake booster of a motor vehicle includes: a first conduit adapted to be connected fluidly to the brake booster; an electric pump connected fluidly to the first conduit, and controllable to evacuate gas from the brake booster via the first conduit; a second conduit; an electric valve fluidly connecting the first and second conduits to each other; a mechanical pump connected fluidly to the second conduit, and adapted to be driven by a vehicle drive unit of the motor vehicle to evacuate gas from the brake booster via the first conduit, the electric valve, and the second conduit; and a control unit operatively associated with the electric pump and the electric valve, and configured to control operations of the electric pump and the electric valve according to a working state of the mechanical pump.

System for evacuating gas from a brake booster

An electric parking brake actuator has an actuator device, a brake device and a cable-tension measuring device. The brake device has a cable and a tube assembly. The cable is mounted through the actuator device. The tube assembly is mounted around the cable and has a first tube, a second tube, a spring, a Hall IC and a magnet. The cable-tension measuring device has a first member and a second member which are mounted around the cable. The second member is capable of moving toward the first member relatively. The compressible spring is mounted between and abuts the first member and the second member. The Hall IC and the magnet are respectively mounted securely on the first member and the second member. The Hall IC is capable of measuring how much the spring is compressed to further measure the tension of the cable.

Electric parking brake actuator

A driving device for a parking brake system includes a casing shift member, a brake cable and a driving member. The casing shift member includes a cable casing. The brake cable is mounted through the cable casing. The driving member has a driving unit connected to and driving the casing shift member to perform a longitudinal motion. Thus the cable casing applies a force on the brake cable so as to perform a brake work. Because the brake cable is tightened with the force provided by the cable casing, the brake cable is only bent slightly. Thus the curvature of the brake cable is small. That prevents the brake cable from being damaged and prolongs a life span of the brake cable. Moreover, a mechanical efficiency of the driving device is improved because the brake cable is tightened with the force provided by the cable casing.

Growing community of inventors

Taichung, Taiwan

Chien-Tzu Chen