電動(dòng)馬達(dá)驅(qū)動(dòng)泵控制的液壓動(dòng)力轉(zhuǎn)向系統(tǒng)的發(fā)展外文翻譯-文庫(kù)吧資料
2025-01-14 09:46本頁(yè)面
【正文】 of flow rate/current as a function of time at40 C. 4. 3 Bench Test Result of Evaluation of Fuel Consumption As shown in Fig. 14, the same simulation system as on vehicle configuration was built up on bench for fuel consumption measurement and an energy as consumed by the electric pump and by the engine 一 driven hydraulic pump respectively was measured thereon. Figure 15 shows the result of such measurement. Consuming an energy half as much as the 2nd generation electric pump and also 20% max. as much as the enginedriven hydraulic pump, the 3rd generation electric pump was proved to provide a large energy saving effect. 4. 4 Result of Evaluation of Responsiveness on Vehicle. Figure 16 shows the result of responsiveness measurement (at steering in a parking condition) for an electric pump and an enginedriven pump, which were respectively installed on vehicles with the same front axle load. As the electric pump is equipped with a standby control capable of setting a pump revolution speed enough for the minimum responsiveness so as to reduce any extra discharge flow, it es to have a responsiveness lower than the enginedriven pump. However, some set value of parameters could allow it to provide a responsiveness equivalent to that for the enginedriven pump, in other words, it es to have an advantage in defining a condition in favor of both the energy saving effect and the responsiveness. 4. 5 Reliability Test for HEPS For reliability, an electric pump has been subjected to various tests under every onvehicle condition such as steering conditions and environmental conditions and it has already been proved to have a reliability equivalent to that for the enginedriven pump. HEPS system ① Performance test at low temperature ② Rotational input endurance test ③ Temperature rise property test and others Electric pump ① Low temperature parking condition steering test ② High temperature parking condition steering test ③ Low vehicle speed driving test (with steering operation) ④ High vehicle speed straightahead driving test ⑤ High temperature operation endurance test ⑧ Heat shock test ⑦ Transient voltage test and others 5. Conclusion Within a frame of our engagement in development of energy saving type power steering systems designated as ecological products, we have achieved the mass production of electric motor driven pump type hydraulic power steering system (HEPS), which not only has been remarkably improved in terms of fuel economy in relation to the conventional normal hydraulic power steering system, but also targets small passenger car. However in response to a request for installation of this HEPS system on even small track and mediumclass passenger car, the relevant motor needs to be powered up. In this case, electric current would e to be largely consumed in such system if 12V battery is applied, so that the connectors, harness, battery and alternator could be largely loaded. That is the reason why a system applicable at high voltage such as 42V (expected to be international standard instead of 12V) needs to be developed immediately. In this line, we would like to direct our efforts hereafter towards a development of energy saving type power steering systems applicable at high voltage. 外文翻譯 電動(dòng)馬達(dá)驅(qū)動(dòng)泵控制的液壓動(dòng)力轉(zhuǎn)向系統(tǒng)的發(fā)展 Y. Obata Y. Teramae K. Yamamoto 在 生態(tài)動(dòng)力轉(zhuǎn)向系統(tǒng)的發(fā)展框架內(nèi)，我們已經(jīng)完成了一個(gè)電動(dòng)馬達(dá)驅(qū)動(dòng)泵液壓動(dòng)力轉(zhuǎn)向系統(tǒng)的發(fā)展，它不是傳統(tǒng)的有刷電機(jī)，而是無(wú)刷電機(jī) ECU的控制，并且取得了進(jìn)一步的節(jié)能裝備。 Go control has been developed by application of a lowinertia brushless motor excellent in starting property and a steering angle sensor as an external sensor. The Stop amp。 外文翻譯原文 Development of Controlled Electric MotorDriven Pump Type Hydraulic Power Steering System Y. Obata Y. Teramae K. Yamamoto Within a frame of development of ecological po
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