发明名称 CIRCUIT FOR CONTROLLING A PLURALITY OF DOUBLE COIL MAGNETIC VALVES AND CONTROL METHOD
摘要 PROBLEM TO BE SOLVED: To reduce costs and suppress current loss by arranging an eliminating line which is common with a plurality of double coil magnetic valves for injecting fuel, and connecting the eliminating line to a cathode terminal connected to two diodes which are directly connected in the reverse direction at each magnetic valve. SOLUTION: A plurality of, for example, four double coil magnetic valves (DS-HDEV) 1 to 4 for injecting fuel in an internal combustion engine, one side end parts of first and second magnetic coils SPAUF, SPZU are mutually connected, and are connected to a common current supplying voltage Ubatt. The other end parts are individually connected to first and second low side switches S11 to S42, and each low side switch is controlled by a driver circuit TR. Eliminating motion of each valve 1 to 4 is carried out through a common eliminating line L1, and the line L1 is connected to a cathode terminal mutually connected to two diodes D11 to D42, and an anode terminal of the diode D is connected to the low side switch.
申请公布号 JP2001003832(A) 申请公布日期 2001.01.09
申请号 JP20000142432 申请日期 2000.05.15
申请人 ROBERT BOSCH GMBH 发明人 REISCHL ROLF;GUENTHER UWE;PISCHKE ULF;ECKHARDT JUERGEN;STEIN JUERGEN
分类号 F02M51/06;F02D41/20;F02M51/02;F16K31/06;(IPC1-7):F02M51/06 主分类号 F02M51/06
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