摘要:
A motor rotor has: a rotor yoke; a plurality of magnet fixing sections formed on the lateral surface of the rotor yoke; segment magnets respectively fixed to the magnet fixing sections and extending in the axial direction of the rotor yoke; and a plurality of projections which are provided, on the rotor yoke, at each boundary section located between each of the adjacent magnet mounting sections, and which protrude outward from the rotor yoke; and a pair of end claws are formed by bifurcating the end of each projection into two prongs, and each of the end claws is locked to the outer surface of each of the segment magnets.
摘要:
A motor rotor has: a rotor yoke; a plurality of magnet fixing sections formed on the lateral surface of the rotor yoke; segment magnets respectively fixed to the magnet fixing sections and extending in the axial direction of the rotor yoke; and a plurality of projections which are provided, on the rotor yoke, at each boundary section located between each of the adjacent magnet mounting sections, and which protrude outward from the rotor yoke; and a pair of end claws are formed by bifurcating the end of each projection into two prongs, and each of the end claws is locked to the outer surface of each of the segment magnets.
摘要:
A vehicle including a steer-by-wire type steering device controlling yaw moment of the vehicle in correspondence with an operation of a steering wheel mechanically separated from each of wheels. The wheels are configured such that a steered angle cannot be changed. The steering device has a power distribution device capable of changing a distribution rate of power applied to each of the wheels, and a braking force control device capable of separately controlling a braking force for each of the wheels. The steering device controls a yaw moment of the vehicle by separately controlling the power applied to each of the wheels and the braking force in each of the wheels.
摘要:
An apparatus which can accurately detect a state in a passenger compartment is provided. On the ceiling of a passenger compartment above the passenger seat, nine LEDs and three photodetectors are aimed downward, and infrared rays emitted from the LEDs are reflected by an object to be sensed and the reflected light beams are received by the photodetectors. A signal at a level corresponding to the distance to the object to be sensed is outputted from the photodetectors. A controller obtains a change with time in output of the photodetectors (i.e., motion speed from a differential value of the sensed distance, a displacement amount total from an integral value of the sensed distance, and a motion frequency), senses movement of the object to be sensed based thereon, determines whether the object to be sensed is a human, an animal, or other, and determines the kind of object. The controller then transmits a signal indicative of a result of the determination of the object to be sensed which is used to control how the vehicle's air bag is inflated.
摘要:
A semiconductor laser includes a semiconductor laser chip stack having active layers formed substantially in the central portion thereof in the stacking direction and a pair of opposed reflecting surfaces formed at both ends of the active layers. A convex lens of a light transmissible material fixedly attached to a partially light transmissible reflecting surface of the pair of reflecting surfaces and adapted for converging a laser beam emitted from the partially light transmissible reflecting surface.
摘要:
An internal combustion engine has an exhaust system and an oxygen sensor fitted to the exhaust system including a sensor element and an electrically powered heater for heating the sensor element. A method for controlling the electrical power supplied to the heater properly and quickly heats up the sensor element after engine starting from the cold condition. At the time of starting up the engine it is determined whether or not the temperature of the engine is less than a certain value. If so, the heater is provided with electrical power to the maximum practicable amount, for a certain time interval after the engine is started up. Thereby, during engine heating up operation, the temperature of the sensor element is brought up to its minimum proper operating temperature as quickly as practicable, and accordingly it is ensured that engine performance and the quality of exhaust gas emissions at the time of such engine warming up operation are good. A system is also described for implementing this method.
摘要:
An internal combustion engine provided with a system for controlling the predetermined idling rotational speed N.sub.F of the engine, and a system for operating a fuel injector so that the injector is de-energized when the rotational speed is higher than N.sub.cut and the injector is energized when the rotational speed is lower than N.sub.RTN. A value of N.sub.cut is the product of N.sub.F and a predetermined positive value .alpha..sub.1 and the value of N.sub.RTN is the product of N.sub.F and a predetermined positive value .alpha..sub.2 (
摘要:
A method is disclosed for automatically shifting the subtransmission of a vehicle which is also equipped with a manual transmission operated by hand by the driver. When the driver shifts by hand to a certain gearing ratio, a vehicle operating parameter is detected, and, on the basis of this detected value, the procedure for shifting the sub-transmission is modified. Shift control of the sub-transmission is then performed in accordance with this modified sub-transmission shift procedure, while the manual transmission remains in this gearing ratio.
摘要:
In conventional electronic fuel injection systems, the flow rate of a fuel supply is fixed during a starting operation irrespective of time variations in the running parameters of an internal combustion engine. In accordance with the disclosed method and apparatus of the invention, however, the fuel supply flow rate is controlled in accordance with the time variations in the engine running parameters in the same manner as occurs after the starting operation, that is, during normal engine running operations, when at least one of the engine operating conditions of r.p.m. being higher than a preset level and flow rate of intake air being higher than a preset level is satisfied. Thus, the engine running operations either at a higher engine r.p.m. or at a higher intake air flow rate during the engine starting period can be stabilized while improving the engine startability and smoothing the engine running operations when an ignition switch is returned from its starting to its "on" position.
摘要:
Disclosed is a method for controlling the ignition timing in an internal combustion engine provided with an EGR device. In this method, the correct EGR ratio of the engine is obtained by means of a specific calculation using a measured absolute pressure value in an intake manifold of the engine where EGR gas is recirculated and using a calculated absolute pressure value in the intake manifold where no EGR gas is recirculated, according to the engine's operating conditions. The optimum ignition timing in the engine is controlled in accordance with the calculated EGR ratio.