To suppress a loss of linear stability caused by shift control during traveling on a rough road surface.SOLUTION: In a vehicle (100) comprising, respectively on a front wheel (11f) side and a rear wheel (11r) side, motors (10f and 10r) and transmissions (13f and 13r) provided between the motors and drive wheels, a shift control method for changing, in order to compensate for a driving force loss in the drive wheel of a shift side, driving force distribution so as to increase a driving force of the motor on a non-shift side when one of the transmissions of the front wheel side and the rear wheel side is shift-controlled, includes: determining whether or not an index increased in accordance with the roughness of a road surface is lower than a threshold value (S103); changing to driving force distribution of shift control to shift the transmission of the shift side when the index is lower than the threshold value (S105); and inhibiting shifting of the transmission on the front wheel side or the rear wheel side when the index is not lower than the threshold value.SELECTED DRAWING: Figure 2
【課題】粗い路面の走行時において、変速制御に起因する直進安定性の喪失を抑制することができる。【解決手段】前輪(11f)側及び後輪(11r)側のそれぞれで、モータ(10f、10r)、及び、モータと駆動輪との間に設けられる変速機(13f、13r)を備える車両(100)において、前輪側及び後輪側のうちの一方の変速機を変速制御する場合には、変速側の駆動輪における駆動力抜けを補填するために、非変速側のモータの駆動力が大きくなるように、駆動力配分を変更する変速制御方法であって、路面の粗さに応じて大きくなる指標が閾値を下回るか否かを判断し(S103)、指標が閾値を下回る場合には、変速制御の駆動力配分に変更して、変速側の変速機を変速させる(S105)、指標が閾値を下回らない場合には、前輪側又は後輪側の変速機の変速を禁止する。【選択図】図2
SHIFT CONTROL METHOD AND SHIFT CONTROL DEVICE
変速制御方法及び変速制御装置
2022-09-13
Patent
Electronic Resource
Japanese
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 / F16H Getriebe , GEARING |
DRIVE SHIFT CONTROL DEVICE AND DRIVE SHIFT CONTROL METHOD
European Patent Office | 2018
|Shift control device and shift control method for vehicle
European Patent Office | 2021
|VEHICLE SHIFT CONTROL METHOD AND VEHICLE SHIFT CONTROL DEVICE
European Patent Office | 2022
|