Patent application number | Description | Published |
20090171550 | CONTROLLER FOR INTERNAL COMBUSTION ENGINE - An engine has cylinders respectively connected to branch pipes branched from a main pipe as an intake manifold. Fuel injection valves are attached to branch pipes, respectively. Further, branch pipes are connected to branch pipes branched from an EGR pipe on a downstream side of EGR valve, and exhaust gas introduced from EGR valve is fed to each of branch pipes. ECU detects imbalance of air-fuel ratio among cylinders, based on cylinder-by-cylinder air-fuel ratio detected by air-fuel ratio sensors provided on branch pipes as an exhaust manifold. If there is an imbalance in air-fuel ratio among cylinders, EGR valve is closed and imbalance in air-fuel ratio among cylinders is again detected. | 07-02-2009 |
20100044131 | CONTROL APPARATUS AND CONTROL METHOD FOR HYBRID VEHICLE - A vehicle includes a charging unit for externally charging a power storage unit with electric power received from an external power supply, and an electric power generation unit capable of generating electric power from drive force received from an engine. The power storage unit is configured to be internally chargeable with electric power received from the electric power generation unit. The vehicle travels in selected one of EV priority mode restricting internal charging of the power storage unit and HV priority mode controlling internal charging such that a state of charge of the power storage unit is kept within a predetermined range. When a predetermined operating condition is satisfied while the vehicle is traveling, a control apparatus generates an operation request to the engine. The control apparatus changes the operating condition of the engine depending on whether the mode is EV priority mode or HV priority mode. | 02-25-2010 |
20110120789 | HYBRID MOTOR VEHICLE AND METHOD OF CONTROLLING HYBRID MOTOR VEHICLE - A hybrid motor vehicle includes: an internal combustion engine that outputs motive power for vehicle traction; an engine-motoring electric motor that motors the internal combustion engine; a vehicle traction electric motor that outputs motive power for vehicle traction; a secondary battery that supplies electric power to the engine-motoring electric motor and to the vehicle traction electric motor; and a pre-engine-start control device that controls the internal combustion engine and the engine-motoring electric motor so as to motor the internal combustion engine in a reverse rotation direction without performing fuel injection or ignition when the hybrid motor vehicle is traveling on motive power from the vehicle traction electric motor without operating the internal combustion engine, after a system of the hybrid motor vehicle is started. | 05-26-2011 |
20110276211 | CONTROL DEVICE FOR VEHICLE - When there is a request to set the output of an engine to correspond to the load of the engine during catalyst warm-up control by which the engine ignition timing is retarded, ECU sets the engine operation line as an emission line to control the engine using the set emission line. The emission line corresponds to a line for controlling the engine to be operated at a relatively high revolution speed and at a relatively low torque as compared with the case of the normal line that is set at the time when catalyst warm-up control is not being performed. The emission line is obtained in advance by experiments and the like in consideration of the amount of retarding the ignition timing during catalyst warm-up control, and the like. | 11-10-2011 |
20130103243 | CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE, HYBRID VEHICLE INCLUDING THE SAME, AND METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINE - A purge control implementation determination unit determines whether or not to implement purge control in accordance with predetermined implementation conditions. If it is determined to implement the purge control, a purge control unit actually implements the purge control. A throttle opening degree upper limit switching unit switches an upper limit value of an opening degree of a throttle based on a determination result of the purge control implementation determination unit. A throttle opening degree control unit controls the opening degree of the throttle so as not to exceed the upper limit value set by the throttle opening degree upper limit switching unit. | 04-25-2013 |
20130239910 | ENGINE CONTROL DEVICE AND ENGINE CONTROL METHOD - A control device is provided for an engine equipped with an electric oil pump for circulating coolant, and having a flow rate of the coolant restricted, when a temperature of the coolant is lower than a threshold value, as compared to a case where the temperature of the coolant is equal to or higher than the threshold value, and the engine control device includes a coolant temperature sensor detecting a temperature of the coolant, and a control unit stopping the engine in accordance with the temperature to be detected by the coolant temperature sensor after the pump is driven so as to increase the flow rate of the coolant, in a case where the flow rate of the coolant is restricted. | 09-19-2013 |
20130255600 | VEHICLE AND METHOD FOR CONTROLLING THE SAME - A vehicle includes an engine capable of being intermittently stopped after it is started; a water pump for circulating cooling water, and an ECU. When the cooling water has low temperature the ECU controls the water pump to limit the flow rate of the cooling water to be smaller than when the cooling water has high temperature. When the cooling water has a limited flow rate the ECU sets lower a threshold value of the cooling water's temperature for permitting intermittently stopping the engine than when the cooling water does not have a limited flow rate. When the cooling water has a limited flow rate the engine can nonetheless be intermittently stopped at an appropriate time. | 10-03-2013 |
20140343781 | HYBRID VEHICLE CONTROL DEVICE - The hybrid vehicle control device of the invention suppresses the decrease of the output torque and the increase of the fuel consumption when the engine operation is started as possible in case that the temperature of the engine compartment is increased by the heat radiating from the engine and the like while the engine operation is stopped during the intermittent engine operation. The device performs an engine motoring without performing a fuel injection in the engine in case that the intake temperature increases when the engine operation is required to be started during the intermittent engine operation. | 11-20-2014 |