Vehicle and control device and control method thereof
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorYuichiro Sawada
Life of this patent
Estimating the term…
Abstract
A vehicle with a transmission having a crankshaft and an output shaft. A clutch located between the output shaft and a drive wheel is engaged and disengaged according to a rotational speed of the output shaft. An idle speed control device performs idle speed control to adjust an idle rotational speed of an engine. An electronic control unit (ECU) suppresses or stops the idle speed control when the clutch is engaged, or when an abnormality in the transmission is detected.
Claims20
A two-wheeled, motorized vehicle comprising:
- a drive wheel;
- an engine;
- an electronic continuously variable transmission that adjusts a transmission gear ratio between an input shaft connected to the engine and an output shaft;
- a clutch, located between the engine and the drive wheel, that is engaged or disengaged according to a rotational speed of the input shaft or a rotational speed of the output shaft;
- an idle speed control device that performs idle speed control to adjust an idle rotational speed of the engine;
- and
- an electronic control unit that is configured to stop the idle speed control device from performing any idle speed control when the clutch is engaged and while the engine is actuated so that the engine is actuated while the idle speed control device is stopped from performing any idle speed control.
A two-wheeled, motorized vehicle comprising:
- a drive wheel;
- an engine;
- an electronic continuously variable transmission that adjusts a transmission gear ratio between an input shaft connected to the engine and an output shaft;
- a clutch, located between the engine and the drive wheel, that is engaged or disengaged according to a rotational speed of the input shaft or a rotational speed of the output shaft;
- an idle speed control device that performs idle speed control to adjust an idle rotational speed of the engine;
- and
- an electronic control unit that is configured to stop the idle speed control device from performing any idle speed control when an abnormality is detected in the electronic continuously variable transmission and while the engine is actuated so that the engine is actuated while the idle speed control device is stopped from performing any idle speed control.
An electronic controller for a two-wheeled, motorized vehicle having a clutch, between an engine and a drive wheel, that is engaged or disengaged according to a rotational speed of an input shaft or a rotational speed of an output shaft of a continuously variable transmission, and an idle speed control device for performing idle speed control to adjust an idle rotational speed of the engine, wherein
- the electronic controller is configured to stop the idle speed control device from performing any idle speed control when the clutch is engaged and while the engine is actuated so that the engine is actuated while the idle speed control device is stopped from performing any idle speed control.
An electronic controller for a two-wheeled, motorized vehicle having a clutch, between an engine and a drive wheel, that is engaged or disengaged according to a rotational speed of an input shaft or a rotational speed of an output shaft of a continuously variable transmission, and an idle speed control device for performing idle speed control to adjust an idle rotational speed of the engine, wherein
- the electronic controller is configured to stop the idle speed control device from performing any idle speed control when an abnormality is detected in the continuously variable transmission and while the engine is actuated so that the engine is actuated while the idle speed control device is stopped from performing any idle speed control.
A control method for a two-wheeled, motorized vehicle having a clutch, located between an engine and a drive wheel, that is engaged or disengaged according to a rotational speed of an input shaft or a rotational speed of an output shaft of a continuously variable transmission, and an idle speed control device for performing idle speed control to adjust an idle rotational speed of the engine, wherein the control method comprises:
- stopping, by an electronic control unit, the idle speed control device from performing any idle speed control when the clutch is engaged and while the engine is actuated so that the engine is actuated while the idle speed control device is stopped from performing any idle speed control.
A control method for a two-wheeled, motorized vehicle having a clutch, located between an engine and a drive wheel, that is engaged or disengaged according to a rotational speed of an input shaft or a rotational speed of an output shaft of a continuously variable transmission, and an idle speed control device for performing idle speed control to adjust an idle rotational speed of the engine, wherein the control method comprises:
- detecting an abnormality in the continuously variable transmission;
- and
- stopping, by an electronic control unit, the idle speed control device from performing any idle speed control when the abnormality is detected and while the engine is actuated so that the engine is actuated while the idle speed control device is stopped from performing any idle speed control.
Dependencies are inferred from the claim text.