Vehicle and intake amount control device
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorManabu Fujito
Life of this patent
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Abstract
In a vehicle, a CPU of an ECU calculates a rotation speed of an engine based on an assumption that a clutch is in a connected state based on a speed of a vehicle detected by a vehicle speed sensor as a hypothetical engine rotation speed. Subsequently, the CPU acquires a target degree of opening of a throttle valve based on the calculated hypothetical engine rotation speed and a set target engine torque. Then, the CPU controls a throttle drive device such that an actual degree of opening of the throttle valve is the acquired degree of opening.
Claims15
A vehicle comprising:
- a main body;
- an engine that generates a torque to move the main body;
- a drive wheel driven by the engine;
- a clutch that switches between a connected state in which the torque is transmitted between the engine and the drive wheel, and a disconnected state in which the torque is not transmitted between the engine and the drive wheel;
- an intake amount adjustor that adjusts an intake amount of the engine by changing a control parameter corresponding to the intake amount of the engine;
- a movement speed detector that detects a movement speed of the main body;
- and
- a controller programmed or configured to, during deceleration of the vehicle and at least when the clutch is in the disconnected state:
- calculate a hypothetical engine rotation speed, the hypothetical engine rotation speed being a rotation speed of the engine calculated based on the movement speed detected by the movement speed detector and an assumption that the clutch is in the connected state;
- and
- acquire a target value of the control parameter as a first value based on the hypothetical engine rotation speed and a set target engine torque, and to set the control parameter of the intake amount adjustor to the first value.
An intake amount control device for controlling an intake amount of an engine on a vehicle including the engine, a clutch, and an intake amount adjustor, the intake amount adjustor adjusts an intake amount of the engine by changing a control parameter corresponding to the intake amount of the engine, the intake amount control device comprising:
- a movement speed detector that detects a movement speed of the vehicle;
- and
- a controller programmed or configured to, during deceleration of the vehicle and at least when the clutch is in a disconnected state:
- calculate a hypothetical engine rotation speed, the hypothetical engine rotation speed being a rotation speed of the engine based on the movement speed detected by the movement speed detector and an assumption that the clutch is in the connected state;
- and
- acquire a target value of a control parameter as a first value based on the hypothetical engine rotation speed and a set target engine torque, and to set a control parameter of the intake amount adjustor to the first value.
Dependencies are inferred from the claim text.