| 摘要 |
FIELD: transport engineering; brake systems. SUBSTANCE: device has pressure setter 2 and pressure transmitter 3, computing logical unit 4, control pulse shaping units 5, 6, normally open and normally closed electromagnetic valves 7, 8. Circuit includes also pedal travel transmitter 1, analog signal receiver 13, analog-to-digital converter 14, interface 15, microprocessor 16, register 17, reprogrammed storage 18, indication unit 19 and diagnostic units 20, 21. If signal from pedal travel transmitter 1 corresponds to pedal released position in operation, microprocessor 16 serves as condition check device for setter 2, pressure transmitter 3 and electromagnetic valves 7, 8. If trouble is revealed, failure is indicated. If signal from transmitter 1 corresponds to pedal pressed-on position, condition of control pulse shaping units 5, 6 is checked and then, depending on relationship between preset and actual values of pressure, orders are sent electromagnetic valves 7, 8 to increase, decrease or maintain pressure. Continuous diagnosing of circuit elements improves reliability of functioning and use and corresponding connection of digital elements contributes to increased accuracy of calculation. EFFECT: improved reliability. 2 dwg |
