To provide a control device for a vehicle which can suppress the unnecessary drive of a sub-drive wheel.SOLUTION: When a tire slip of a main drive wheel or a sub-drive wheel is detected, a road face friction coefficient is estimated, and the estimated road face friction coefficient (estimation road face μ) is newly stored in a road face friction coefficient storage part 314 according to the estimation of the road face friction coefficient. In a torque distribution determination part 315, a distribution of the drive torque to the main drive wheel and the sub-drive wheel is newly determined by using the road face friction coefficient. Also, a time at which the detection of a tire slip is continued is measured. When the measured time does not reach a constant time at a time point at which the tire slip is no longer detected, the estimation road face μ stored in the road face friction coefficient storage part 314 is returned to the estimation road face μ which has been stored before the detection of the tire slip from the newly-detected estimation road face μ.SELECTED DRAWING: Figure 2
【課題】副駆動輪の不要な駆動を抑制できる、車両用制御装置を提供する。【解決手段】主駆動輪または副駆動輪のタイヤスリップが検出された場合、路面摩擦係数が推定され、路面摩擦係数が推定されたことに応じて、その推定された路面摩擦係数(推定路面μ)が路面摩擦係数記憶部314に新たに記憶される。トルク配分決定部315では、その路面摩擦係数を使用して、駆動トルクの主駆動輪および福駆動輪への配分が新たに決定される。また、タイヤスリップが検出され続けている時間が計測される。タイヤスリップが検出されなくなった時点で、それまでに計測された時間が一定に満たない場合には、路面摩擦係数記憶部314に記憶される推定路面μが新たに記憶された推定路面μからタイヤスリップの検出前に記憶されていた推定路面μに戻される。【選択図】図2
CONTROL DEVICE FOR VEHICLE
車両用制御装置
2020-07-09
Patent
Electronic Resource
Japanese
IPC: | 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 |
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