摘要:
An engine control system for a hybrid vehicle having an internal combustion engine and an electric motor as driving force sources, for permitting stopping and restarting of the engine in accordance with predetermined drive conditions. The engine control system includes a fuel cutter for cutting fuel supply to the engine when the vehicle decelerates and an engine speed detector for detecting an engine speed. Stopping of the engine is initiated by cutting the fuel supply by the fuel cutter, and when the engine speed becomes equal to or lower than a predetermined speed, the engine is stopped by operating the motor as a generator and by cutting the fuel supply.
摘要:
In order to prevent an occurrence of dieseling phenomenon, and to prevent engine rotation speed from decreasing during idle operation or the idle operation from being stopped, in step S111, it is determined whether the flag value of an idle stop flag F_IDLSTP is “1” or not. If it is determined that the determination result is “YES”, that is, if it is determined that the internal combustion engine body is stopped, 0% is set to a target purge control valve drive duty value PGCMD (step S105), and 0 is set to the target purge flow rate QPGC (step S106). If it is determined that the determination result is “NO”, that is, when the internal combustion engine body is in operation, PGCMD calculation processing is executed (step S112). While the internal combustion engine body is stopped, execution of purge is stopped, thereby an occurrence of a dieseling phenomenon which is caused because the flow rate of the air flowing into the internal combustion engine body increases and the air is compressed, is prevented, thereby suppressing vibration from occurring in the internal combustion engine body.
摘要:
The present invention relates to a power generation control apparatus for a hybrid vehicle. The hybrid vehicle comprises an engine which outputs a driving force for the hybrid vehicle; a motor which outputs an assistant driving force so as to assist the driving force of the engine; a power storage unit; and a power generation control apparatus which controls the power generation by the motor. The power generation control apparatus comprises a load torque calculation device which calculates the load torque to be applied to an engine of the hybrid vehicle for generating electrical power used in the hybrid vehicle when the engine is idling; a generable torque calculation device which calculates torque generable by the engine when the engine is idling; and a power generation load torque determination device which determines a limiting value of a power generation load torque to be applied to the engine in accordance with the load torque calculated by the load torque calculation device and the generable torque calculated by the generable torque calculation device.
摘要:
Conditions for permitting operation of vibration control are that; a stored charge of a battery 17 for an electric motor detected by storage state monitoring devices 15 and 24 is larger than a predetermined storage charge threshold, a vehicle's engine is idling, engine speed is within a prescribed range, and engine load is within a prescribed range. When all these conditions are satisfied, vibration damping control by a vibration damping control device is performed.
摘要:
A hybrid vehicle control apparatus is provided, wherein an unpleasant sensation is not imparted to a driver depressing an accelerator pedal at the time of departure. In a hybrid vehicle control apparatus with an engine and a motor as the drive sources, and a battery for storing electrical energy from the engine or the kinetic energy of the vehicle converted by the motor, the vehicle is provided with an automatic transmission. Moreover, there is provided a discharge suppression mode which suppresses discharge from the remaining battery charge detected by a battery ECU, and a charge/discharge permit mode which permits charge/discharge of the battery. At a time of vehicle departure, departure assistance is performed only when a degree of throttle opening showing an acceleration intention of the driver exceeds a determination threshold which is larger than a determination threshold for at the time of the discharge/charge permit mode.
摘要:
A control apparatus for a hybrid vehicle having a dynamotor which operates as a motor for assisting the output of an internal combustion engine and which operates as a generator for regenerating the running energy of the vehicle. The control apparatus, in accordance with operating conditions of the vehicle, controls an assist operation for supplying electric power from a storage device to the dynamotor and a regenerative operation for charging the storage device by the generated power of the dynamotor, and determines an acceleration mode for performing an assist operation or a cruising mode for selectively performing the assist operation and a regenerative operation, in accordance with an engine rotational speed and a throttle valve opening degree, or a vehicle speed of the vehicle and the throttle valve opening degree.
摘要:
The control apparatus for the hybrid vehicle is provided with a combustion engine for outputting a driving force, an electric motor for generating a force for assisting the output from the engine, a power storage unit for storing electric energy generated by the motor acting as a generator using the output from the engine and electric energy regenerated by the motor when the vehicle decelerates. The control apparatus including: an engine temperature measuring device for measuring the temperature of the engine; and a generated energy increasing device for increasing the energy generated by the motor acting as a generator when the vehicle is traveling by the driving force from the engine without the assistance of the motor, and when the engine temperature measuring device determines that the temperature of the engine is equal to or below a predetermined temperature.
摘要:
A control system and method applied to a hybrid vehicle by which an excessive decrease of the remaining battery charge can be prevented while driving in a traffic jam. In the method, the remaining battery charge of the battery device is detected; and whether the vehicle is driving in a traffic jam is determined; and the charging device is made to charge the battery device if the detected remaining battery charge of the battery device is below a first predetermined value, and if it is determined that the vehicle is driving in a traffic jam.
摘要:
A hybrid vehicle control apparatus for improving fuel consumption ratio by making appropriate the deceleration perception of the hybrid vehicle is provided. It is determined whether the flag setting of a brake ON determination flag is “1”. If the brake is OFF, a brake OFF regeneration amount is obtained, and is assigned to the deceleration regeneration computed value. It is determined whether a remaining batter charge is greater than or equal to a predetermined normal power generation mode execution upper limit remaining charge. In the case where the determination result is yes, it is determined whether a control vehicle speed is greater than or equal to a predetermined high speed deceleration regeneration reduction lower limit vehicle speed. In the case where the determination result is yes, the value obtained by multiplying the deceleration regeneration computed value by a predetermined high speed deceleration regeneration reduction coefficient, for example 0.8, is set as a new deceleration regeneration computed value.
摘要:
A hybrid vehicle comprises an engine and a motor as its drive sources. The hybrid vehicle also comprises a control device which stops the fuel supply to the engine at the time of vehicle deceleration, and performs regenerative braking by the motor depending on the deceleration state, in which the engine is a cylinder deactivation engine capable of switching between all cylinder operation for operating all cylinders and cylinder deactivation operation for deactivating at least one or more cylinders. The cylinder deactivation operation is conducted during deceleration state of the vehicle to reduce pumping losses of the engine so that the regeneration efficiency of the motor is improved. The control device comprises an abnormality detection device which detects abnormality in the cylinder deactivation engine, and a motor output limiting device which limits the output of the motor in response to the detection of the abnormality.