Control method and device for hybrid motor
AssigneeNissan Motor Co., Ltd.
InventorToshikazu Shiino
Life of this patent
Estimating the term…
Abstract
A control device for a hybrid motor constituted by an internal combustion engine and an electric motor, which are connected via a clutch, stops the internal combustion engine when a predetermined deceleration condition is established, and prohibits stoppage of the internal combustion engine when the temperature of an exhaust gas purification catalyst interposed in an exhaust system of the internal combustion engine is higher than a first predetermined temperature, which is higher than an activity start temperature of the exhaust gas purification catalyst, even if the predetermined deceleration condition is established.
Claims15
A control device for a hybrid motor comprising an internal combustion engine and an electric motor, which are connected via a clutch, the control device comprising:
- a temperature detection unit configured to detect a temperature of an exhaust gas purification catalyst interposed in an exhaust system of the internal combustion engine;
- and
- an internal combustion engine control unit configured to:
- stop the internal combustion engine when a predetermined deceleration condition is established,
- maintain a rotation of the internal combustion engine with a fuel cut when the temperature of the exhaust gas purification catalyst is higher than a first predetermined temperature, which is higher than an activity start temperature of the exhaust gas purification catalyst, even if the predetermined deceleration condition is established, and
- maintain the rotation of the internal combustion engine without the fuel cut when the temperature of the exhaust gas purification catalyst is higher than a second predetermined temperature, which is higher than the first predetermined temperature.
A control device for a hybrid motor comprising an internal combustion engine and an electric motor, which are connected via a clutch, the control device comprising:
- a means for detecting a temperature of an exhaust gas purification catalyst interposed in an exhaust system of the internal combustion engine;
- and
- a control unit configured to perform the steps of:
- stopping the internal combustion engine when a predetermined deceleration condition is established,
- maintaining a rotation of the internal combustion engine with a fuel cut when the temperature of the exhaust gas purification catalyst is higher than a first predetermined temperature, which is higher than an activity start temperature of the exhaust gas purification catalyst, even if the predetermined deceleration condition is established, and
- maintaining the rotation of the internal combustion engine without the fuel cut, when the temperature of the exhaust gas purification catalyst is higher than a second predetermined temperature, which is higher than the first predetermined temperature.
A control method for a hybrid motor comprising an internal combustion engine and an electric motor, which are connected via a clutch, the control method comprising:
- detecting a temperature of an exhaust gas purification catalyst interposed in an exhaust system of the internal combustion engine;
- stopping the internal combustion engine when a predetermined deceleration condition is established;
- maintaining a rotation of the internal combustion engine with a fuel cut when the temperature of the exhaust gas purification catalyst is higher than a first predetermined temperature, which is higher than an activity start temperature of the exhaust gas purification catalyst, even if the predetermined deceleration condition is established;
- and
- maintaining the rotation of the internal combustion engine without the fuel cut, when the temperature of the exhaust gas purification catalyst is higher than a second predetermined temperature, which is higher than the first predetermined temperature.
Dependencies are inferred from the claim text.