The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2014
Filed:
Apr. 06, 2011
Takeshige Miyazaki, Chiryu, JP;
Takeshige Miyazaki, Chiryu, JP;
Aisin AI Co., Ltd., Nishio-Shi, JP;
Abstract
When it is determined that a driver requests a deceleration of a vehicle (t), a motor torque is kept to be zero. A value in the deceleration direction (deceleration torque stabilized value A) at which an engine torque is stabilized after it changes from a value in the acceleration direction to the value in the deceleration direction is predicted. Before the engine torque reaches the deceleration torque stabilized value A, the clutch torque is adjusted to be the deceleration torque stabilized value A. When the engine torque reaches the deceleration torque stabilized value A (t), the clutch torque is gradually decreased from the deceleration torque stabilized value A, and a regeneration torque is gradually increased from zero. A decreasing slope of a vehicle torque is kept constant over a period (tto t) when the vehicle torque decreases. Therefore, the vehicle can smoothly be decelerated during the deceleration of the vehicle. Thus, during the deceleration of a hybrid vehicle with clutch, the clutch torque and the regeneration torque are appropriately adjusted, whereby the vehicle can smoothly be decelerated.