FAIL SAFE CIRCUIT FOR AN ANTI-LOCK BRAKING SYSTEM MODULATOR DRIVE

摘要

the circuit includes a control circuit (18) is connected between the output of an anti lock control (10) and an output connector (22) which provides the connection for the valve (14) operable by a modulating solenoid, a relay (12) to the excitation solenoid is known assigned to receive the output from the control circuit (18).the control signals for the excitation relay (12) and the valve (14) operable by a solenoid modulator has an opposite polarity so that a short circuit to earth or to invalidate the positive anti blocking system, and avoids the unnecessary operation.