To effectively conduct abnormality diagnosis in a vehicle to which driving force is applied by a plurality of actuators.SOLUTION: On the basis of accelerator opening, a wheel torque setting part F1 sets a target wheel torque, that is distributed to ICE1, EM2 and SSG3. Output torque of these actuators is estimated according to respective torque estimation parts F12, F13 and F14. A total torque diagnosis part F20 converts each output torque to a torque at a drive wheel by taking into account a speed reduction ratio from each actuator until reaching a drive wheel, in order to obtain a total sum, and compares the total sum with the target wheel torque. Individual torque diagnosis parts F17, F18 and F19 conduct diagnosis by comparing target torque of individual actuators with the output torque.SELECTED DRAWING: Figure 2
【課題】駆動力が複数のアクチュエータによって与えられる車両において、異常診断を効果的に行う。【解決手段】アクセル開度に基づきホイールトルク設定部F1が目標のホイールトルクを設定し、ICE1、EM2およびSSG3に分配される。これらのアクチュエータの出力トルクは、各々のトルク推定部F12,F13,F14によって推定される。全体トルク診断部F20では、各アクチュエータから駆動輪に至るまでの減速比を考慮して各出力トルクを駆動輪でのトルクに換算した上で総和を求め、これを目標のホイールトルクと比較する。個別トルク診断部F17,F18,F19では、個々のアクチュエータの目標トルクと出力トルクとを比較して診断を行う。【選択図】図2
ABNORMALITY DIAGNOSIS DEVICE AND ABNORMALITY DIAGNOSIS METHOD FOR VEHICLE
車両の異常診断装置および異常診断方法
2021-05-27
Patent
Elektronische Ressource
Japanisch
IPC: | 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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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