There is disclosed a scroll-type machine particularly suited for use as a refrigerant compressor and incorporating an improved suspension system for the non-orbiting scroll whereby the latter may be pressure biased for the purpose of augmenting tip sealing. The machine also has a modified wrap tip and end plate profile in order to enhance performance, as well as an improved lubrication system for the drive and a baffle arrangement to provide a directed suction inlet. The machine also has an Oldham coupling utilizing a novel ring element which is non-circular and provides for increased thrust-bearing size, or reduced machine size. There is also disclosed a method of manufacture of a scroll-type machine.

Scroll-type machine with axially compliant mounting

The invention is directed to a throttle control apparatus for use in an internal combustion engine. The apparatus includes an accelerator operating mechanism, a driving source, and a supporting member secured to an end portion of a throttle shaft extending out of a housing. A rotor is rotatably mounted on the throttle shaft, and connected with the driving source to be rotated thereby. A movable member is mounted on the throttle shaft between the rotor and the supporting member to be axially movable. A connecting member is disposed for connecting the movable member with the supporting member, and biasing the former toward the latter. An electromagnetic coil is disposed to face the rotor. There is provided an engaging member which has a base end mounted on the movable member for supporting the engaging member rotatably within a predetermined angle range. A driving member having an end face engageable with the engaging member is mounted rotatably about an axis parallel with the axis of the throttle shaft, and connected with the accelerator operating mechanism. The engaging member has an axial length engageable with the end face of the driving member only when the movable member is positioned at the side of the supporting member.

Throttle control apparatus

Apparatus for controlling an automotive vehicle is provided. The vehicle has a plurality of wheels, each wheel having an individually operable brake. The apparatus comprises a mechanism for determining the steering angle of the vehicle. A yawing moment controller receives the steering angle and determines a moment that is applied to the vehicle to prevent an undesirable yaw angle, yaw rate or yaw acceleration. Distribution logic receives the output of the yawing moment controller. The distribution logic determines a respectively different weighted coefficient for each individual brake, and an individual braking pressure to be applied to each respective one of the brakes based on the moment and the respective weighted coefficient of the one brake.

Brake system for a motor vehicle with yaw moment control

The engine control system for a hybrid vehicle, according to the present invention, having an internal combustion engine and an electric motor as driving force sources, comprises: a clutch, provided between the engine and a transmission system, for disabling and enabling driving force transmission between the engine and the transmission system; clutch disengagement detector for detecting engagement/disengagement of the clutch; engine speed detector for detecting an engine speed; and fuel cutter for permitting stopping and restarting of the engine in accordance with at least a result of detection by the clutch disengagement detector among predetermined drive conditions, and cutting fuel supply to the engine when the vehicle decelerates, a fuel-supply restart engine speed at which fuel supply is resumed being set in the fuel cutter. Stopping the engine is accomplished by cutting fuel supply by the fuel cutter, and once the engine stop is initiated, even when the engine speed reaches the fuel-supply restart engine speed, fuel supply cut by the fuel cutter is maintained, and when the engine speed detected by the engine speed detector at a time of disengagement of the clutch is detected by the clutch disengagement detector is equal to or lower than a predetermined engine speed, fuel supply cut by the fuel cutter is maintained whereas when the detected engine speed is higher than the predetermined engine speed, fuel supply is restarted.

Engine control system for hybrid vehicle

A system for controlling internal combustion engine performance in accordance with driver behavior includes a vehicle control computer operable to receive a plurality of vehicle operating parameter signals and control engine fueling based thereon. In accordance with an operational status, or an operational state determined over a predefined time interval, of one or more of the vehicle operating parameter signals, the system is operable to control available engine performance. Both the operational status and operational state of the various vehicle operating parameters are the result of the manner in which the driver operates the vehicle. The control system of the present invention is thus operable to reward/penalize driver performance by correspondingly adding/subtracting available engine performance in the form of available engine output power and/or available vehicle speed. Preferably, subtracting available engine performance occurs automatically, and adding available engine performance may be either done automatically or according to driver demand.

System for controlling internal combustion engine performance in accordance with driver behavior

A system and method for electronically controlling a vehicular engine operation in accordance with an accelerator operation which can utilize a system for automatically controlling a vehicle speed to a set cruising speed are disclosed in which an operating variable selection mechanism which selects and outputs one of operating variables whose value is larger than the other operating variable, the operating variables being derived from an accelerator and from an actuator of the automatic vehicle cruise controlling system is installed. The selected operating variable of the operating variable selection mechanism is detected by means of an accelerator sensor. A throttle actuator is controlled for driving the throttle valve toward the direction in which an opening angle of the throttle valve coincides with a target opening angle which is defined by a detected variable of the accelerator sensor. A limiter provided for limiting a maximum opening angle of the throttle valve is driven by means of a limiter driving mechanism toward the angular position of the throttle valve corresponding to the selected operating variable of the operating variable selection mechanism and is held thereat against the driving force of the throttle actuator by means of a limiter holding mechanism.

System and method for electronically controlling a vehicular engine operation having a safe function

A traction control system monitors wheel slippage and variation of wheel slippage for detecting road friction condition. The traction control system selects brake control characteristics depending upon the detected road friction condition.

Traction control system for controlling engine output and brake for maintaining optimum wheel traction with road friction level dependent brake control

A traction control system is associated with a vehicular brake system which can control braking force for respective individual driving wheel independently of each other on the basis of an average wheel slippage data. The average wheel slippage data is derived introducing weighing technology giving higher weight for wheel slippage on a driving wheel, on which occurring smaller wheel slippage in comparison with the other. The traction control performs control of application of braking force for respective driving wheel independently of each other so that wheel traction recovering efficiency at respective driving wheel can be optimized.

Traction control system for automotive vehicle

PURPOSE: To make sufficient braking force demonstrable as securing favorable accelerability, by limiting the desired opening of a throttle valve found according to an accelerator manipulated variable to the critical opening set in conformity with a car running state. CONSTITUTION: In this controller, there is provided with a desired opening operational device (b) which finds the desired opening of a throttle valve on the basis of output of an accelerator manipulated variable detecting device (a) detecting a manipulated variable of an accelerator operator of an accelerator pedal or the like. Also there is provided with a characteristic setting device (d) which sets a manipulated variable-critical opening characteristic on the basis of output of a running state detecting device (c) detecting a car running state. And, at a desired opening limiting device (e), using the said detection manipulated variable, critical opening is found out of the manipulated variable- critical opening characteristic, and the desired opening found by the operational device (b) is made so as to be limited to the critical opening. And, according to the abovementioned desired opening, opening of the throttle valve is controlled by a throttle valve controlling device (f). COPYRIGHT: (C)1987,JPO&Japio

Accelerator controller for vehicles

PURPOSE: To improve the traveling performance on a split μ road by selecting the less speed among the right and left drive wheel speed and calculating the actual slip rate from the selected drive wheel speed and the driven wheel speed and executing the drive power reduction control. CONSTITUTION: In a car speed detecting device equipped with a differential limit mechanism (c) between the right and left drive wheels (a) and (b), the right and left drive wheel speed detecting means (d) and (e) for detecting the revolution speed of the right and left drive wheels (a) and (b) in a driven wheel speed detecting means (f) for detecting the revolution speed of the driven wheel are installed. A drive wheel speed selecting means (g) calculates the actual slip rate between a tire and road surface by an actual slip rate calculating means (h) from the selected drive wheel speed and the driven wheel speed. The actual slip rate is compared with a prescribed set slip rate, and when the actual slip rate exceeds the set slip rate, a drive power control means (i) executes the drive power reduction control, and the drive wheel slip is suppressed. COPYRIGHT: (C)1989,JPO&Japio

Shinji Katayose

Papers

System and method for electronically controlling a vehicular engine operation having a safe function

Traction control system for controlling engine output and brake for maintaining optimum wheel traction with road friction level dependent brake control

Traction control system for automotive vehicle

Accelerator controller for vehicles

Drive power controller for vehicle