CAJ | 학술논문

为了提高电控组合泵喷油电磁阀的高速驱动性能,采用分析和试验相结合的方法设计了一种具有双电压自动切换的双阶段脉冲宽度调制(PWM)波限流控制功能的驱动模块,并在油泵试验台架上进行了多项参数试验和分析.试验结果表明:对于作用电流为18A的电磁阀,在高压值为100V、高压作用时间为290μs时,其驱动电流上升率高且不造成能量损耗;PWM波频率取值约100kHz时既能减小电流波动又能克服干扰;与单纯采用普通二极管的续流回路相比,采用瞬变抑制二极管的续流电路能使电流的下降延迟时间缩短10倍以上.
위료제고전공조합빙분유전자벌적고속구동성능,채용분석화시험상결합적방법설계료일충구유쌍전압자동절환적쌍계단맥충관도조제(PWM)파한류공제공능적구동모괴,병재유빙시험태가상진행료다항삼수시험화분석.시험결과표명:대우작용전류위18A적전자벌,재고압치위100V、고압작용시간위290μs시,기구동전류상승솔고차불조성능량손모;PWM파빈솔취치약100kHz시기능감소전류파동우능극복간우;여단순채용보통이겁관적속류회로상비,채용순변억제이겁관적속류전로능사전류적하강연지시간축단10배이상.
In order to enhance the performance of driving circuit for fuel injection solenoid valves of electronically controlled assembly pump, a new driving module with dual voltage automatically switched two phase pulse width modulation(PWM) current-limiting control function was designed on the basis of analysis and experiments. The actual measurements in the pump bench test show that for the solenoid valve of working current of 18A, quick driving current response and low power consumption can be achieved at high voltage 100V and its acting time 290μs. It is proved that both driving current waving and pulse jamming are lowest when PWM frequency of 100kHz is taken. And the driving current drop delay time is shortened over 10 times, when using the TVS diode in return of after-flow circuit than using common one.