摘要:
An evaporative emission control system for an internal combustion engine includes a canister for adsorbing evaporative fuel generated in the fuel tank, a communication passage connecting between first and second adsorbent chambers defined in the canister, a first introducing passage for introducing the generated evaporative fuel into the canister on an occasion other than at fueling, a purging passage for purging the evaporative fuel adsorbed into the canister to the intake passage, and an air-inlet passage communicating with the atmosphere. The first introducing passage, the second air-inlet passage and the purging passage are connected to the first adsorbent chamber. A second introducing passage is connected to the second adsorbent chamber, for introducing the evaporative fuel thereinto at refueling, and an additional passage having a cross sectional area larger than that of the air-inlet passage and communicating with the atmosphere is connected to the first adsorbent chamber. A first valve is arranged across the air-inlet passage, for closing the same at refueling, and a second valve across the additional passage, for opening the same at refueling.
摘要:
An evaporative fuel-adsorbing device adsorbs evaporative fuel generated from a fuel tank of an internal combustion engine. A partition divides the interior of a casing at least into a first adsorbent chamber and a second adsorbent chamber. Adsorbents are charged in the first adsorbent chamber and the second adsorbent chamber, respectively, for adsorbing the evaporative fuel. The evaporative fuel from the fuel tank is permitted to flow into the first adsorbent chamber via a charging port provided therein. The evaporative fuel desorbed from the adsorbents in the adsorbent chambers are permitted to flow out of the first adsorbent chamber via a purging port provided therein. The second adsorbent chamber is communicated with the atmosphere via an air-inlet port. The maximum flow rate of the evaporative fuel through a communication passage connecting between the first and second adsorbent chambers is changed in dependence on at least one of an amount of the evaporative fuel flowing into the evaporative fuel-adsorbing device and an amount of the evaporative fuel flowing out of same. An evaporative emission control system incorporating the evaporative fuel-adsorbing device is also provided.
摘要:
A mass flowmeter outputs an output value indicative of the flow rate of a gaseous mixture containing evaporative fuel and being purged into the intake system of an internal combustion engine. A calculated value of the flow rate of the mixture is obtained based on a plurality of operating parameters of the engine. The actual flow rate of the mixture and/or the actual flow rate of the evaporative fuel are/is calculated based on the output value from the mass flowmeter and the calculated value based on the engine operating parameters. The concentration of the evaporative fuel is calculated from the calculated actual flow rates of the evaporative fuel and the mixture. The calculated actual flow rate is compared with a desired flow rate value, and a purge control valve is controlled based on results of the comparison. A basic amount of fuel supplied to the engine is corrected based on the calculated actual flow rate of the evaporative fuel.
摘要:
A running control apparatus for a vehicle controls a state of running using a driving source for generating a driving force of the vehicle. The apparatus includes an accelerator pedal measuring device for measuring a degree of depression of an accelerator pedal of the vehicle; and a vehicle speed measuring device for measuring a vehicle speed of the vehicle. A driving-force maintenance mode for maintaining the driving force or a vehicle-speed maintenance mode for maintaining the vehicle speed is executed based on the measured degree of depression of the accelerator pedal and the measured vehicle speed. The apparatus may include an inter-vehicle distance measuring device for measuring an inter-vehicle distance between the present vehicle and a vehicle ahead thereof. An inter-vehicle-distance maintenance mode is also provided so as to maintain the inter-vehicle distance based on the measured degree of depression of the accelerator pedal and the measured inter-vehicle distance.
摘要:
A drive control apparatus for a hybrid vehicle which has an engine selectively set in one of a normal fuel-consumption operation mode and a low fuel-consumption operation mode for obtaining a lower fuel consumption; a generator selectively used for one of being driven by the engine and assisting driving of the engine; a motor for generating a driving force of the vehicle by electric power supplied by the generator or a battery device; and a clutch between the generator and wheels of the vehicle. The drive control apparatus has a control part for performing a low fuel-consumption driving assistance mode when the engine is set in the low fuel-consumption operation mode. In the low fuel-consumption driving assistance mode, the clutch is connected, and driving of the vehicle is assisted using one of the generator and the motor, which is selected in accordance with an operation state of the vehicle.
摘要:
A controller in the electric vehicle is provided in which data which are criteria to determine a magnitude of degradation tendency of a high-voltage secondary cell are stored in a ROM in a high-voltage battery electrical controller. When it is detected that an ignition switch is turned off, the magnitude of the degradation tendency is determined depending on a temperature of the high-voltage secondary cell and a state of charge value based on the data. When it is determined that the degradation tendency is large, the battery fan and the air conditioner are operated so that the state of charge value and the temperature decrease. Next, while repeating determination of the magnitude of the degradation tendency, when it is determined that the degradation tendency is small, the operation of the battery fan and the air conditioner is stopped. Therefore, the state of charge value is prevented from decreasing more than necessary.
摘要:
An air conditioning device for a vehicle having a regenerative section improves efficiency of regeneration. The air conditioning device comprises a compressor (6) connected to an output shaft (1a) of an engine (1) via an electromagnetic clutch (5), a motor-generator (2) for electrically recovering kinetic energy of the vehicle (100) during deceleration, a battery (9) for storing energy regenerated by the motor-generator (2), and a motor-driven compressor (13). When the vehicle (100) is in a deceleration state, the compressor (6) is disconnected from the engine (1) by disengaging the electromagnetic clutch (5), and air conditioning is performed by the motor-driven compressor (13).
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 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 control device for a hybrid vehicle is provided, which executes charging of a capacitor when a depth-of-discharge of a capacitor exceeds a predetermined depth-of-discharge which is set based on a vehicle speed. The control device of the hybrid vehicle, provided with an engine, a motor for assisting the output of the engine, and a capacitor for supplying electric power to the motor and for storing regenerative energy, comprises a depth-of-discharge detecting device (S063) for detecting a depth-of-discharge DOD of the capacitor, wherein when the depth-of-discharge DOD of the capacitor falls below the depth-of-discharge limit value DODLMT (053), the capacitor is charged so as to recover the depth-of-discharge of the capacitor.