摘要:
A series hybrid vehicle includes a generator to be driven by an engine, a battery to be charged by the output power of the generator, and a motor for driving the vehicle using the output power sent from the generator and the output power sent from the battery. In an engine control system for the series hybrid vehicle, the values of power demanded by the vehicle when the vehicle is running (i.e., power demand values) are derived based on various engine operation indicative sensor signals, and a running state of the vehicle is estimated based on a frequency distribution of the power demand and a mean value of such power demand values. The system selects one of prestored control patterns depending on the estimated vehicle running state and controls the engine based on the selected control pattern so as to further control the output power of the generator. The system is also applicable to a parallel hybrid vehicle.
摘要:
A refrigerating system of a gas injection type having first and second stage pressure reducers 3 and 5, between which a separator 4 is arranged, and a conduit 10 for introduction of a gaseous refrigerant separated at a separator 4 into a compressor 1. A by-pass conduit 11 is connected to a refrigerating system so that the second stage pressure reducer 5 is by-passed. An ON-OFF control valve 12 is arranged in the by-pass conduit. The control valve 12 is switched to an opened condition during a low load of the air conditioning system, which makes a pressure difference low between the outlet of the separator 4 and an evaporator 6, which prevent gas injection from being executed. A control valve can also be arranged in a gas injection conduit 10, which controls an amount of the gas injection in accordance with a ratio (compression ratio) of an outlet pressure to an intake pressure in such a manner a reduction of a gas injection amount is obtained when a value of the compression ratio is lower than a predetermined value, thereby preventing over-compression from occurring.
摘要:
A charging apparatus for a rechargeable storage battery is disclosed which charges the battery at a constant current. The charging apparatus monitors a variation in voltage of the battery during charge and finds a minimum value thereof to estimate the amount of capacity of the battery consumed before charge for determining the charge time required for charging the battery fully based on the estimate of the amount of capacity and the temperature of the battery.
摘要:
In a combustion heater, a fuel feed unit supplies a fuel uniformly into a burner so as to prevent incomplete combustion in the burner. When a vaporization member is provided in the burner, the fuel feed unit supplies the fuel uniformly all over the surface of the vaporization member so that the incomplete combustion in the burner is also prevented. In addition or alternatively, the fuel feed unit includes a fuel feed pipe and a valve unit which is provided at a tip portion of the fuel feed pipe, so as to prevent emissions of an unburned fuel. In addition or alternatively, a temperature of the fuel supplied to the burner is monitored, and an operation of the fuel feed unit or an air feed unit for supplying combustion air to the burner is controlled based on the monitored fuel temperature so as to provide a desirable air-fuel mixture for preventing incomplete combustion in the burner. An amount of the fuel supplied to the burner or an oxygen concentration in an exhaust gas after combustion in the burner may be monitored instead of the fuel temperature.
摘要:
When heating the passenger compartment of a vehicle during cold weather, an air switching outlet is operated to allow the entry of outside air with an interior blower being operated to facilitate the entry of the outside air. A condenser door is operated to close an air passage of the condenser and a bypass passage is opened so that outside air flows to the passenger compartment of the vehicle while bypassing the condenser. Further, only a defogging outlet is opened and the incoming air is blown out from this defogging outlet toward the windshield of the vehicle so that a low humidity air curtain is formed proximate to the inner surface of the windshield. After completing the warm-up of the heat pump cycle, the condenser door is switched such that the air blown in by the blower passes the interior condenser to start the heating of the passenger compartment.
摘要:
A fuel burning heater comprises a housing 1 provided with a fluid passage 13 defined in a wall thereof, and a burner 2 accommodated in an inside space of the housing 1 to heat fluid filled in the fluid passage 13. A fuel supply device 3 supplies fuel into the burner 2. An air supply device 4, including an air supply pipe 41, supplies air into the burner 2. An exhaust gas circulating device 5 circulates exhaust gas, produced in the burner 2 by combustion of air-fuel mixture, to the air supply pipe 41. A control unit 7 increases an amount of the exhaust gas circulated by the exhaust gas circulating device 5 when an amount of fuel supplied by the fuel supply device 3 is reduced.