摘要:
An engine automatic start stop control apparatus for controlling an engine of a vehicle to be automatically stopped or started in response to driving conditions of a vehicle, which is equipped with a manual transmission, an automatic transmission or a continuously variable transmission (CVT). The apparatus makes a determination whether or not to allow stop (or idle stop) of the engine in consideration of a relationship between outside air temperature and engine water temperature. This prevents a catalyst from being deteriorated in performance as a result of a temperature reduction of the catalyst occurs when the engine idling is carelessly stopped. Thus, it is possible to effectively reduce discharge gas of the vehicle. The outside air temperature can be estimated based on intake air temperature which is detected after the vehicle runs for a prescribed time. The idle stop of the engine is inhibited in response to a request from an air conditioner or to avoid cool-down of the engine to be restarted. In addition, the idle stop of the engine is allowed or inhibited in consideration of remaining battery charge, particularly in the case of a hybrid vehicle which is equipped with a motor/generator in addition to the engine. The engine is automatically restarted to avoid unwanted reduction of the remaining battery charge.
摘要:
A control apparatus of a hybrid vehicle is provided, capable of charging the battery device when the state of charge of the battery device tends to decrease and the initial state of charge of the battery device is reduced by a predetermined amount. The present device comprises a lower limit threshold value setting device S060, an upper limit threshold value setting device for setting the lower limit and upper limit threshold values, respectively, of the discharge amount of the battery device, a mode setting device S054 for increasing the state of charge when the state of charge is reduced to the lower limit threshold value, a mode setting release device S062 for releasing the mode setting changed by the mode setting device, and a discharge depth detecting device S063 for detecting the discharge amount of the present state of charge by comparison with the initial state of charge. The threshold value for determining whether it is necessary for the motor to assist the engine is modified depending upon the discharge depth.
摘要:
A control apparatus of a hybrid vehicle is provided, capable of charging the battery device when the state of charge of the battery device tends to decrease and the initial state of charge of the battery device is reduced by a predetermined amount. The present device comprises a lower limit threshold value setting device S060, an upper limit threshold value setting device for setting the lower limit and upper limit threshold values of the discharge amount of the battery device, a mode setting device S054 for increasing the state of charge when the state of charge is reduced to the lower limit threshold value, a mode setting release device S062 for releasing the mode setting changed by the mode setting device, and a discharge depth detecting device S063 for detecting the discharge amount of the present state of charge by comparison with the initial state of charge. The threshold value for determining whether it is necessary for the motor to assist the engine is modified depending upon the discharge depth.
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:
A control apparatus provided in a hybrid vehicle with a combustion engine for outputting a driving force, an electric motor for generating a force for assisting the output from the engine, depending on the driving conditions, 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 generated by the motor when the vehicle decelerates. The control apparatus includes an output assistance determining device for determining whether to assist the output from the engine by the motor; a generation controller for setting the amount of generation by the motor and performing the generation by the motor when the output assistance determining device determines that the motor is not to assist the output from the engine; and a generation limiter for limiting the amount of generation set by the generation controller.
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:
An output control apparatus for a hybrid vehicle is provided, capable of preventing stopping of the engine at the time of recovering from a deceleration fuel cut and improving the acceleration capability. In a hybrid vehicle comprising an engine, a motor for assisting the driving power of the engine, and a battery for supplying electric power for the motor, the output control apparatus comprises an engine speed sensor, an idle stop execution judgement flag F_FCEX, and a motor ECU for judging whether the output assistance by the motor is to be executed, and the motor ECU comprises a deceleration fuel cut returning time permission judgement device (S026) for permitting the output assistance by the motor, when it is judged to return from the deceleration fuel cut by the flag value of the idle stop execution judgement flag F_FCEX, and when it is detected that the engine speed at the time of returning from the deceleration fuel cut is lower than a predetermined engine speed #NEMGMOT.
摘要:
An engine control system and method is disclosed, which reduces driver's feeling of unease relating to the operation of driving a vehicle which is idle-controlled so as to reduce the exhaust gas discharge, thereby improving the driving operability. The method comprising the steps of detecting a switch of the driving mode of the vehicle from a first normal driving range to a second normal driving range different from the first normal driving range; detecting whether the engine is currently in a stopped state due to an automatic stop operation; detecting whether a brake for stopping the vehicle is currently being operated; and automatically starting the engine if it is determined that the engine is currently in a stopped state due to the automatic stop operation, and that the driving mode has been switched to the second normal driving range, and that the brake is not currently being operated.
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:
When the shift position is an N position or a P position during deceleration of a vehicle, or when a brake pedal is depressed even if the shift position is a D position or an R position, an engine E is stopped to prohibit an unnecessary idling operation by prohibiting the restarting of the supplying of fuel subsequent to the fuel cut by a command from an electronic control unit. If the supplying of fuel is restarted when the engine is in stoppage, a starter motor is driven automatically to start the engine. Thus, in a vehicle including an automatic transmission, the time of stoppage of the engine can be prolonged as much as possible in a range in which the operability of the vehicle is injured, thereby providing a reduction in amount of fuel consumed.