Controller and control method of vehicle
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsTakaaki Tokura, Toshio Sugimura, Tomohiro Asami, Nobufusa Kobayashi
Life of this patent
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Abstract
An ECU executes a program sets a driver requested torque based on the accelerator operation amount, and sets a torque-boost amount so that the torque-boost amount increases as the driver requested torque increases, until the driver requested torque exceeds a predetermined torque T(0). When the driver requested torque exceeds the predetermined torque T(0), the torque-boost amount decreases as the driver requested torque increases. However, the torque obtained by adding the torque-boost amount to the driver requested torque increases as the accelerator operation amount increases.
Claims3
A controller of a vehicle having a power source, and an automatic transmission, coupled to the power source, that establishes a plurality of gear steps of different gear ratios by selectively engaging a plurality of friction engagement elements, the controller comprising:
- a control section that controls the power source when the automatic transmission upshift so that a torque-boost control of the power source is executed during a torque phase of the upshift;
- and
- a setting section that sets a torque-boost amount for the torque-boost control during the torque phase based on a driver requested output amount, wherein the setting section increases the torque-boost amount as the driver requested output amount increases until the requested output amount exceeds a predetermined value, when the driver requested output amount exceeds the predetermined value, the setting section decreases the torque-boost amount as the requested output amount increases, and wherein a torque obtained by adding the torque-boost amount to a requested torque, which corresponds to the driver requested output amount, is increased as the driver requested output amount increases.
A control method of a vehicle having a power source, and an automatic transmission, coupled to the power source, that establishes a plurality of gear steps of different gear ratios by selectively engaging a plurality of friction engagement elements, the control method comprising:
- controlling the power source when the automatic transmission upshifts so that a torque-boost control of the power source is executed during a torque phase of the upshift;
- and
- increasing a torque-boost amount as a driver requested output amount increases in the torque-boost control until the driver requested output exceeds a predetermined value;
- and
- decreasing the torque-boost amount as the driver requested output amount increases when the driver requested output amount exceeds the predetermined value;
- wherein a torque obtained by adding the torque-boost amount to a requested torque, which corresponds to the driver requested output amount, is increased as the driver requested output amount increases.
Dependencies are inferred from the claim text.