PROBLEM TO BE SOLVED: To provide a slip control device of an electric automobile which can detect a slip of a driving vehicle by detecting the inclination of a vehicle.SOLUTION: A slip control device 20 of an electric automobile includes: vehicle speed detecting means 18 for detecting vehicle speed; driven wheel rotation speed calculating means 19 for calculating the rotation speed of a driving wheel 7; and slip determining means 21 which compares the rotation speed of the driving wheel 7 with the vehicle speed, and determines that the driving wheel 7 slips when the rotation speed of the driving wheel 7 is larger than the vehicle speed. The slip determining means 21 is provided with vehicle angle detection means 25 which detecting inclined angles of front and rear parts of a vehicle from two air pressure sensors 28F and 28R respectively provided at the front and rear parts of the vehicle, and vehicle speed correcting means 24 which corrects the vehicle speed by using inclined angle/correction amount setting means 33 setting a relationship of the inclined angle and vehicle speed correction amount, from the detected inclined angles at the front and rear parts of the vehicle.
【課題】 車両の傾きを検出して、駆動輪のスリップを正確に検出することができる電気自動車のスリップ制御装置を提供する。【解決手段】 この電気自動車のスリップ制御装置20は、車速を検出する車速検出手段18と、駆動輪7の回転速度を計算する駆動輪回転速度計算手段19と、駆動輪7の回転速度と前記車速とを比較し、駆動輪7の回転速度が前記車速よりも大きいとき、駆動輪7がスリップしたと判断するスリップ判断手段21とを備える。スリップ判断手段21に、車両の前後にそれぞれ取り付けた2個の気圧センサ28F,28Rから車両の前後の傾き角を検出する車両傾き角検出手段25と、検出される車両の前後の傾き角から、傾き角と車速補正量との関係を設定した傾き角・補正量設定手段33を用いて前記車速を補正する車速補正手段24とを設けた。【選択図】 図4
SLIP CONTROL DEVICE OF ELECTRIC AUTOMOBILE
電気自動車のスリップ制御装置
2016-01-28
Patent
Electronic Resource
Japanese