Compressed-air braking system esp. for heavy goods vehicle - includes central controller comparing brake cylinder pressures and correcting control valve signal for cylinder-specific pressure deviation

摘要

The system measures pressure in brake cylinders (26,27) of HGV, supplied via control valves (18), by transducers (16). The positions of the pistons (32) are signalled (15) to electronic controllers (9) in individual wheel-brake modules (12,13) and a central controller (6). A twin-circuit braking-value sensor (2) is connected between the brake pedal (3) and the central controller. Typical pressure deviation for each cylinder in subsequent braking operations is allowed for in a corrected signal to the corresp. valve. ADVANTAGE - Ride stability is improved, and heating and wear of brakes are reduced by simultaneous application on all braked wheels. Reduced coupling forces in tractor-and-trailer combinations.