本帖最後由 EddieTsai 於 2013-9-18 03:32 編輯
我們的Prius-c 使用不同於傳統設計的轉向系統, 少了油壓但多了扭力回授(From Steering Column Torque Sensor)
和動力轉向電馬達, 還有動力轉向系統控制電腦. 電腦利用CAN Bus 接收車速(Wheel speed sensor)
和轉向角度(Steering Angle Sensor)等訊號, 準確的讓我們在開車的時候能夠於低速時有較輕的方向盤操控,
高速時則有較重的感覺.
因為傳統油壓系統無論何時都需引擎帶動油泵來產生動力, 而Prius-c 只有在轉向的時候才提供助力，
所以降低了約5至10匹的馬力損耗。没了油壓管路及油泵的配置，更降低了因為漏油所產生的維修費用。
以下資料摘錄 Toyota Prius-c Repair manual POWER STEERING SYSTEM DESCRIPTION
1. DESCRIPTION The power steering system generates torque through the operation of the motor and the reduction gear installed on the column shaft in order to assist steering effort. The power steering ECU assembly determines the direction and the amount of assist power in accordance with the vehicle speed signals and signals from the torque sensor built into the electric power steering column sub-assembly. As a result, the power steering ECU assembly adjusts the steering effort so that it is lighter during low speed driving and heavier during high speed driving. (a) Power steering ECU assembly: The power steering ECU assembly calculates assist power based on steering torque signals from the torque sensor and vehicle speed signals from the brake booster with master cylinder assembly. (b) Torque sensor: The torque sensor detects the steering effort generated when the steering wheel is turned and converts it to an electrical signal.
(c) Power steering motor assembly: The power steering motor assembly is activated by the current from the power steering ECU assembly and generates torque to assist the steering effort.
其他參考資料如下: 1) EPS Application note 2) EPS电动助力转向系统 3) Hyundai Power Steering (MDPS) 4) Electronic Power Steering Basic Description
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发表于 2013-9-17 03:55
发表于 2013-9-17 22:02
