VEHICLE CONTROL DEVICE

• Main Authors: NAITO YOSUKE, MURATA NAOYA, YUI NAOKI, YASUDA HIDEYUKI
• Format: Patent
• Language: English; Japanese
• Published: 21.09.2022
• Subjects: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TRANSPORTING; VEHICLES IN GENERAL

To optimize change of vehicle driving force when switching over from EV travel to series travel.SOLUTION: A control device 100 comprises: an EV priority mode which performs EV travel control; and a normal mode which selectively performs a second ECVT travel control and the EV travel control. A first upper limit value of a vehicle required driving force in a first operation mode is set to be a maximum power which can be supplied from a battery BAT to an electric motor MOT. A second upper limit value of the vehicle required driving force in the normal mode is set to be a value larger than the maximum power. When it is activated in the EV priority mode and when any of a plurality of conditions determining the end of the EV priority mode is satisfied, it is changed to the normal mode, the upper limit value of the vehicle required driving force is gradually increased from the first upper limit value to the second upper limit value, and an increase speed from the first upper limit value to the second upper limit value is varied according to the satisfied condition.SELECTED DRAWING: Figure 9 【課題】ＥＶ走行からシリーズ走行に切り替わる場合の車両の駆動力の変化を最適化する。【解決手段】制御装置１００は、ＥＶ走行制御を実行するＥＶ優先モードと、第２ＥＣＶＴ走行制御及びＥＶ走行制御を選択的に実行するノーマルモードと、を有し、第１動作モードでは、車両要求駆動力の第１上限値を、バッテリＢＡＴから電動機ＭＯＴに供給可能な最大電力に設定し、ノーマルモードでは、車両要求駆動力の第２上限値を、上記最大電力よりも大きい値に設定し、ＥＶ優先モードで動作している状態で、ＥＶ優先モードの終了を判定するための複数の条件のいずれかが満たされた場合に、ノーマルモードに切り替えて、上記車両要求駆動力の上限値を上記第１上限値から上記第２上限値まで徐々に増加させ、上記第１上限値を上記第２上限値まで増加させる際の増加速度を、満たされた上記条件に応じて変更する。【選択図】図９