PROBLEM TO BE SOLVED: To improve straight line stability while driving on a bad road, and suppress overshoot of a vehicle while maintaining turning characteristics at turning.SOLUTION: A drive control device of an electric vehicle driven by power of electric motors 10L, 10R comprises: a vehicle travel angle detection unit 26 which detects a travel angle of the electric vehicle as a vehicle travel angle ac; an instruction angle input unit 27 which inputs an instruction angle instructing the travel angle of the electric vehicle by an indication unit (13) as an input angle xt; an input angular variation amount calculation unit 28 which calculates an input angular variation amount on the basis of the input angle and an instruction angle yt previously estimated; a filter processing unit 29 which processes the input angle and the instruction angle previously estimated by filter to calculate an estimated instruction angle yt+1; and a target travel angle calculation unit 30 which calculates a target travel angle at+1 on the basis of the estimated instruction angle, the vehicle travel angle, and a previous target travel angle. The filter processing unit 29 is constructed to select a filter to be used on the basis of the input angular variation amount.SELECTED DRAWING: Figure 4
【課題】悪路走行時における直進安定性を向上でき、更に旋回時の旋回特性を維持しつつ車両のオーバーシュートを抑制できること。【解決手段】電動モータ10L、10Rの動力で駆動される電動車両の駆動制御装置であって、電動車両の進行角度を車両進行角度acとして検出する車両進行角度検出部26と、電動車両の進行角度を指示する指示部(13)からの指示角度を入力角度xtとして入力する指示角度入力部27と、入力角度及び前回の推定指示角度ytから入力角度変化量を演算する入力角度変化量演算部28と、入力角度及び前回の推定指示角度をフィルタにより処理して推定指示角度yt+1を演算するフィルタ処理部29と、推定指示角度、車両進行角度及び前回の目標進行角度から目標進行角度at+1を演算する目標進行角度演算部30とを有し、フィルタ処理部29は、入力角度変化量に基づいて、使用するフィルタを選択するよう構成されたものである。【選択図】 図4
DRIVE CONTROL DEVICE OF ELECTRIC VEHICLE
電動車両の駆動制御装置
2018-03-01
Patent
Electronic Resource
Japanese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
ELECTRIC VEHICLE DRIVE CONTROL DEVICE AND ELECTRIC VEHICLE DRIVE CONTROL METHOD
European Patent Office | 2019
|