ELECTRIC VEHICLE CONTROL DEVICE

You are here: Homepage > Search

ELECTRIC VEHICLE CONTROL DEVICE

Free access

YAMAMOTO RYOJI / HIRAO TOMOYUKI

To provide an electric vehicle control device capable of reducing degradation of fuel economy while securing drivability.SOLUTION: When an opening of an accelerator pedal is 0% with no operation made to request an electric vehicle to accelerate, that is no operation to step on the accelerator pedal, regenerative operation of a drive motor is performed and regenerative braking force is applied to a driving system with the driving motor functioning as resistance. In this instance, deceleration of the electric vehicle is set equal to or lower than a predetermined maximum deceleration. However, when the opening of the accelerator pedal becomes 0% in a speed range where a speed of an electric vehicle is a vehicle speed V4 or higher, a reduction range of deceleration is set according to the deceleration to be set at the time of starting regenerative operation of a drive motor so that a variation range of the deceleration in a period until the electric vehicle is stopped does not exceed an allowable variation range. Then, the maximum deceleration of the electric vehicle is reduced from a value D2 to a value D3 using the reduction range.SELECTED DRAWING: Figure 2

【課題】ドライバビリティを確保しつつ、燃費の悪化を低減できる、電動車両の制御装置を提供する。【解決手段】電動車両の加速を要求する操作、つまりアクセルペダルを踏む操作が行われておらず、アクセル開度が０％であるときには、駆動モータの回生運転が行われて、駆動モータが抵抗となることによる回生制動力が駆動系に付与される。このとき、電動車両の減速度が所定の最大減速度以下で設定されるが、電動車両の車速が車速Ｖ４以上の車速域でアクセル開度が０％になった場合には、電動車両が停車するまでの期間における減速度の変動幅が許容変動幅を超えないように、駆動モータの回生運転の開始時に設定される減速度に応じた下げ幅が設定されて、その下げ幅で電動車両の最大減速度が値Ｄ２から値Ｄ３に下げられる。【選択図】図２

Access

Download

Export, share and cite

Document information

Title :

ELECTRIC VEHICLE CONTROL DEVICE

Additional title:

電動車両の制御装置

Contributors:

YAMAMOTO RYOJI (author) / HIRAO TOMOYUKI (author)

Publication date :

2022-05-17

Type of media :

Patent

Type of material :

Electronic Resource

Language :

Japanese

Classification :

IPC:

B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion