Abstract: A hybrid vehicle includes: a driving power source including an engine and an electric motor; a battery that supplies electric power to the electric motor; and a controller that controls the engine and the electric motor according to a temperature of the battery. When a predetermined EV mode condition is satisfied, and a normal-temperature condition in which the temperature of the battery is a threshold or more is satisfied, the controller controls the driving power source in an EV mode in which the electric motor is driven. When the EV mode condition is satisfied, and a low-temperature condition in which the temperature of the battery is less than the threshold is satisfied, the controller operates the electric motor in a state where electric current flows between the battery and the electric motor drives the engine such that the engine generates traveling power transmitted to a driving wheel.

Abstract: Disclosed is a method for adapting a control signal of a control circuit for at least one injector of a combustion engine of a motor vehicle, the control signal being a voltage-pulse signal of variable frequency varying between a minimum frequency and a maximum frequency and which is characterized over a given period by its duty cycle. For a given period of the control signal, the method includes determining the start time of the given period and of detecting the first pulse in the given period from the start time and, when the duration of the detected first pulse is included in a minimum time interval beginning at the start of the given period and the duration of which is dependent on the maximum frequency, modifying the duration of the detected first pulse so that the duration becomes equal to the duration of the minimum time interval.

Abstract: An anti-vibration support system for an engine, comprising an active anti-vibration supporting device including an elastic member adapted to receive a vibration of the engine; a liquid chamber, wherein at least a portion of a wall surface of said liquid chamber is defined by said elastic member; a movable member adapted to change a volume of said liquid chamber; and an actuator that uses an electromagnetic force to drive said movable member, wherein the vibration of the engine is prevented from being transmitted to a vehicle body frame by controlling a supply of electric current to said actuator, and wherein operation of said active anti-vibration supporting device is prohibited when an abnormality in an operational state of the engine is detected.

Abstract: There is well known that the much timing of fuel injection is advanced, the much start ability of an engine is improved. However, with regard to the conventional fuel injection system, when stopping process of the engine is performed, a timer piston determining timing of fuel injection remains at a position at which the piston exists at the time that the stopping process is performed. Then, at the time of next starting of the engine, the timer piston does not often exist in the advanced angle side and the start ability may be bad. For solving this problem, an ECM 21 advances a timer piston 52 and stops fuel injection of a fuel injection pump 40 at the time that actual phase difference C reaches stopping target phase difference Z so as to stop an engine 20.

Abstract: A method of operating an internal combustion engine is provided which includes the step of determining a desired intake manifold pressure or gas density, based at least in part on a value indicative of a difference between a desired engine speed and an actual engine speed. The method further includes the steps of determining a value indicative of an intake manifold pressure, and adjusting the intake manifold pressure, based at least in part on a difference between the desired intake manifold pressure and the determined value indicative of intake manifold pressure. A software control algorithm for operating an internal combustion engine is provided. The control algorithm includes a first closed loop algorithm for determining a desired intake manifold pressure or gas density, and a second closed loop algorithm for adjusting throttle position, based at least in part on a difference between the desired intake manifold pressure or density and a determined value indicative thereof.

Abstract: Methods and apparatus are provided for controlling manifold absolute pressure in a hybrid electric vehicle that includes an internal combustion engine in parallel with an electric motor/generator. The method includes the steps of monitoring the torque demand on the hybrid electric vehicle, monitoring the manifold absolute pressure magnitude and change rate of the internal combustion engine, supplying torque from the internal combustion engine to meet the torque demand; and supplying torque from the motor/generator to load-level the torque supplied from the internal combustion engine and to maintain the manifold absolute pressure of the internal combustion engine within an acceptable range and rate.

Abstract: An ignition system for an internal combustion engine, which includes circuitry for producing pulses at a frequency directly related to rotational speed of the engine and a capacitor discharge circuit. A first monostable circuit responsive to the pulses is arranged for triggering the capacitor discharge circuit by passing from its stable state to its unstable state. A second monostable circuit responsive to the pulses is arranged for triggering the capacitor discharge circuit when passing from its unstable state to its stable state. The time constant of the first monostable circuit is substantially equal to the frequency of the ignition system discharge corresponding to the maximum admissible speed of the engine. The time constant of the second monostable circuit being equal to a predetermined value equal to a value of retarded ignition allowing operation of the engine at a reduced power.