Abstract:
In a hybrid vehicle wherein an engine (2) and a motor/generator (1) are connected in a state wherein they can be driven mutually, and the engine (2) is connected to drive wheels (8) via a motor (4) via a clutch (3), the output torque of the engine is precisely controlled. A control device to perform this control comprises a mechanism (39, 40) which increases and decreases the output torque of the engine (2), a sensor (11) which detects the output of the motor/generator (1), and a microprocessor (16) programmed to control the output torque increase and decrease mechanism (39, 40) so that the output of the motor/generator (1) is zero when the engine is in the idle running state and the clutch (3) is released.
Abstract:
A clutch control system having an engine speed sensor (26) for monitoring the speed of an engine (10), a clutch actuation sensor (34) for monitoring the operation of a clutch slave cylinder (22), a throttle position sensor (30) and a control unit (36) receives signals from the sensors (26, 34, 30) and determines when clutch control is required. When it is, the control unit switches to a reference mode in which, in a continuous closed loop operation, an engine speed signal Ve is compared to a reference speed signal Vr and the clutch is engaged or disengaged slightly to make the engine speed approach the reference speed.
Abstract:
A vehicle operating and speed-regulating system for a motor vehicle having a transmission and an engine accelerated and decelerated under control of gas and brake pedals, wherein vehicle speed is maintained at a constant value preset by actuation of one of the pedals just before both pedals are released. The constant speed maintaining action of the system is effected by regulating both shifting of the transmission and optimized operation of the engine pursuant to calculations made to attain driving conditions in accordance with diagrammed characteristics of the engine.
Abstract:
A disconnected situation of a clutch is detected by a clutch sensor and an actuator performing selection of gear ratio in a secondary transmission is controlled by a control circuit in response to detected signals of the clutch sensor, whereby the selection of the gear ratio is conducted only when the clutch is put in its disconnected situation.
Abstract:
An automobile brake device comprising a control valve for controlling the flow of a working medium between a master braking unit and a wheel braking unit, the control valve having a passage for the working medium to flow through and a plunger for selectively opening and closing the passage, the plunger being provided with a toggle lever and a spring to resiliently urge the plunger into a open or closed position, the toggle lever being operable by hand to open and close the passage for the working medium, so as to facilitate the braking and the releasing of the brakes of an automobile while driving on a slope.
Abstract:
An apparatus for delivering power to a power driven device comprises an engine having a combustion chamber and including a compression relief system for venting the combustion chamber with the atmosphere on a selective basis. The apparatus further includes a transmission mechanism for operatively connecting the engine with the power driven device, which transmission mechanism has a drive position for powering the power driven device and a neutral position for operatively disconnecting the engine from the power driven device. A compression relief control mechanism permits venting through the compression relief system when the transmission mechanism is in the neutral position and prevents venting through the compression relief system when the transmission mechanism is in the drive position.
Abstract:
Methods and systems are provided for controlling and diagnosing a mechanical vehicle component. In one example, a method may include determining a vehicle speed and a plurality of clutch position settings at a diagnostic controller, and identifying unauthorized conditions based on these determinations. Further, the diagnostic controller may trigger an active fault state of the mechanical vehicle component in order to avoid unauthorized conditions that may lead to unwanted or unanticipated changes in vehicle motion.