PROBLEM TO BE SOLVED: To provide a drive force control diagnosis apparatus capable of calculating drive force accurately so that a deviation of the drive force from target drive force falls within a permissible range, thus diagnosing the drive force correctly.SOLUTION: A drive force control diagnosis apparatus includes: output torque estimation means 15 for estimating output torque of an engine; torque variation calculation means 16 for calculating torque variation of the output torque on the basis of an operation state of an engine 1; variation-inclusive torque calculation means 17 for calculating variation-inclusive torque on the basis of the output torque and the torque variation; drive force calculation means 12 for calculating drive force of a vehicle on the basis of the variation-inclusive torque and a gear ratio of a transmission; and diagnosis means 11 for diagnosing the drive force of the vehicle on the basis of the drive force and target drive force.SELECTED DRAWING: Figure 3
【課題】駆動力と目標駆動力との偏差が許容偏差内に収まるように精度よく駆動力を算出することで、駆動力を正しく診断できる駆動力制御診断装置を提供する。【解決手段】駆動力制御診断装置は、エンジンから出力される出力トルクを推定する出力トルク推定手段15と、エンジン1の運転状態に基づいて、出力トルクのトルクばらつきを算出するトルクばらつき算出手段16と、出力トルクとトルクばらつきとに基づいて、ばらつき込みトルクを算出するばらつき込みトルク算出手段17と、ばらつき込みトルクと変速機の変速比とに基づいて、車両の駆動力を算出する駆動力算出手段12と、駆動力と車両の目標駆動力とに基づいて、車両の駆動力診断を実行する診断手段11と、を有する。【選択図】図3
DRIVE FORCE CONTROL DIAGNOSIS APPARATUS
駆動力制御診断装置
2016-05-23
Patent
Electronic Resource
Japanese
DRIVE FORCE CONTROL METHOD AND DRIVE FORCE CONTROL APPARATUS
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