Abstract: The invention relates to a method for operating a fuel supply pump of a vehicle, the vehicle comprising a combustion engine system and a gearbox, the method comprising the steps of: determining one or more operational values of at least one operational parameter of the combustion engine system; determining a reduction of a fuel provision rate to the combustion engine system; determining whether a gear step change of the gearbox is at hand, on the basis of the determined one or more operational values of the at least one operational parameter; and in case a gear step change of the gearbox is at hand, controlling operation of the fuel supply pump so as to maintain fuel supply pump speed.

Abstract: A start-stop device for commencing an automatic switch-off process of a drive machine in a motor vehicle includes means for detecting a first trigger condition for initiating an automatic switch-off process, means for detecting a second trigger condition for initiating an automatic switch-off process if the first trigger condition can no longer be met, and means for initiating an automatic switch-off process of the drive machine if the first trigger condition or the second trigger condition is met.

Abstract: A system and method for providing a notification of an automated restart of vehicle movement that include determining an automated stoppage of the vehicle based on an operation of a low speed follow functionality of the vehicle. The system and method also include measuring a duration of the automated stoppage of the vehicle and determining at least one countermeasure parameter. The system and method further include providing an impulse acceleration for a duration of time during the automated restart of vehicle movement.

Abstract: A system and method can control the dry dual clutch transmission (dDCT) of a vehicle. The method includes modifying a recorded torque-to-position (TTP) table based on a calculated clutch torque difference between a calculated clutch torque and a commanded clutch torque. The commanded clutch torque is provided by a transmission control module and is defined as a clutch torque sufficient to move the vehicle without applying the accelerator applier after the brake applier has been released. The calculated clutch torque is a function of the actual engine torque value, the engine inertia, and the engine acceleration.

Abstract: A method of estimating transmission torque of a dry clutch, may include a) slowly releasing a dry clutch until a slip of the dry clutch occurs, b) acquiring and storing stroke of an actuator and torque of an engine at a starting time point at which the slip of the dry clutch occurs at step a), and c) determining the stroke of the actuator and the transmission torque of the dry clutch at the starting time point at which the slip of the dry clutch occurs, by using the stroke of the actuator and the torque of the engine stored at step b).

Abstract: A method and a system for improving operation of a hybrid vehicle are presented. In one example, an engine exhaust after treatment device is cooled at an opportunistic time. The approach may provide improved cooling for exhaust after treatment devices and it may also improve vehicle emissions.

Abstract: A motorized vehicle includes a transmission system and an inch/brake device providing at least two ranges of motion. An engagement force of the transmission system is provided in a first range of motion of the inch/brake device, and a braking force of the motorized vehicle is provided in a second range of motion of the inch/brake device. An accelerator device moves between two or more positions, wherein moving the accelerator device from one position to another position causes an amount of overlap between the first and second ranges of motion of the inch/brake device to vary.

Abstract: A control apparatus for an idle-stop system mounted on a manual-transmission-vehicle includes a restart unit performing a restart operation of the engine such that the restart unit drives a starter to restart the engine when a predetermined restart condition is met. The restart condition includes a condition where a clutch member is operated to allow the motive force to be transmitted between the output shaft of the engine and the driving wheel of the vehicle while the motive force has been blocked by the clutch, and a condition where the brake member is operated to stop applying the braking force to the wheel while the motive force has been blocked by the clutch. A forced stopping means is adapted to stop the wheels by forcibly applying the braking force to the wheels by operating a brake actuator during a predetermined period since the restart condition is met.

Abstract: A device for controlling an automatic start of the engine mounted on a vehicle which includes a clutch to transmit/block motive power between an output shaft of the engine and the driving wheel of the vehicle. The automatic start control device includes an automatic restart processing in which a starter is driven to crank the engine when predetermined restart conditions are met thereby restarting the engine. The automatic start control device detects a state of the clutch being either transmitting or blocking and detects whether or not a transition of the state occurs during the cranking of the engine in the automatic restart processing. The control device forcibly stops driving of the starter when the transition of the state occurs.

Abstract: In apparatus for controlling operation of a four-wheel drive vehicle having a prime mover (engine), drive wheels driven by the prime mover and free wheels, a VC (viscous coupling; torque transferring device) installed between the drive wheels and free wheels to transfer torque generated in response to a difference between inputted and outputted rotation thereof, output of the prime mover is decreased based on a desired rotational speed of the drive wheels driven by the prime mover when calculated difference between inputted and outputted rotation of the VC is equal to or greater than a predetermined value, thereby enabling to control the driving force effectively so as to achieve required vehicle driving performance.

Abstract: A control system for a saddle-type vehicle is provided. The control system includes a reverse lever, a hand brake lever, a throttle lever and at least one mount bracket. Each of the reverse lever, the hand brake lever and the throttle lever are pivotably coupled to the at least one mount bracket and the at least one mount bracket is configured to be connected to a first one of a right handlebar and a left handlebar of a saddle-type vehicle.

Abstract: One embodiment of the present disclosure provides a material reduction machine including a clutch configured and arranged to engage and disengage a material reduction tool with an engine based in response to a control unit. The control unit is configured to decelerate the material reduction tool by maintaining the clutch engaged with the engine during an engine speed reduction period. Another embodiment of the present disclosure also provides a method of decelerating a material reduction tool of a material reduction machine. The method includes the steps of maintaining engagement between the material reduction tool and an engine after the engine enters an engine speed reduction mode, and disengaging the material reduction device from the engine before the engine rpm drops below a predetermined level.

Abstract: A method for controlling an inching procedure of a motor vehicle, which has at least one friction clutch arranged between a drive unit and a transmission. The torque of the clutch is specified by a control unit and set by a clutch actuator. If the brake and load lever are not actuated, a multi-stage is started by an torque set by the clutch. To perform the process, the torque is increased up to a specified maximum limit to reach a specified speed in a first stage. A specified time period is waited in a second stage if the specified speed does not reached the maximum limit. The torque is increased by a specified value in a third phase if the specified speed is not reached, and the torque is reduced in a fourth stage and a driver warning is output if the specified speed again is not reached.

Abstract: A method is provided for controlling disengagement of an automated clutch in a vehicle. A decrease of a first engine rotational speed limit, at which the clutch is disengaged, is initiated upon sensing travel of the vehicle in a down slope, and zero displacement of the throttle control. The first engine rotational speed limit is decreased to a speed where an, in the vehicle arranged, engine idle speed regulator injects an amount of fuel corresponding to a positive engine torque which equals current retarding negative engine torque so that total output torque from the engine is approximately zero. The vehicle accelerating effect due to engine braking torque drop out when the clutch is disengaged will be eliminated.

Abstract: An engine speed control device for an industrial vehicle includes an approach detector that detects an approach of the industrial vehicle to an object to be approached; and an engine speed controller that restricts an upper limit of a rotation speed of an engine when the approach detector detects an approach of the industrial vehicle to an object to be approached.

Abstract: During a starting operation or a low-speed drive of a vehicle on a slope, the drive control of the invention sets a gradient-corresponding rotation speed N? as a rotation speed of an engine to output a required driving force against a longitudinal vehicle gradient ?fr (step S110), and sequentially sets a low-?-road correction rotation speed Nlow upon identification of a low-?-road drive condition, a vehicle speed difference-compensating rotation speed Nv based on a vehicle speed V, and a brake-based correction rotation speed Nb based on a brake pressure Pb (steps S120 through S250). The drive control sets a target engine rotation speed Ne* based on these settings (step S260) and subsequently sets a target throttle opening THtag (step S270). The operation of the engine is controlled with the greater between the target throttle opening THtag and a required throttle opening THreq corresponding to an accelerator opening Acc (step S290).

Abstract: A fuel injecting control method during coasting of a vehicle, may include operating coasting mode when a coasting mode operation condition is satisfied, maintaining the coasting mode for a predetermined interval, injecting fuel according to engine speed, cutting fuel injecting when detected vehicle speed is equal to or more than a predetermined fuel cutting vehicle speed and less than a predetermined vehicle over speed, operating an assist brake when the detected vehicle speed is equal to or more than the predetermined vehicle over speed, and releasing the coasting mode when a releasing condition of the coasting mode is satisfied.

Abstract: The present invention relates to an electronic control fuel saving clutch device for a vehicle, comprising: an electronic control clutch (7), a brake switch (8), an accelerator sensor (9) and an electromagnetic fuel line throttle valve (G) for opening and closing the accelerated fuel supply; the electronic control clutch and the electromagnetic fuel line throttle valve are controlled by the brake switch and signals emitted by the accelerator sensor, wherein when the brake switch is switched on, the electronic clutch is engaged, and the electromagnetic fuel line throttle valve is closed, and the engine is supplied only with the idle fuel supply; when the brake switch is switched off, if the accelerator sensor detects that the accelerator pedal (P) goes forward or keeps in a certain forward position, the electronic control clutch is engaged and the electromagnetic fuel line throttle valve is open, then the accelerating fuel supply is switched on, and the engine is supplied with the accelerating fuel supply; if

Abstract: An engine control apparatus basically has a clutch release detecting component, a time measuring component and a rotational speed synchronization control component. The clutch release detecting component detects when a clutch arranged between an engine and a manual transmission has been released to prevent rotation from being transferred from the engine to the manual transmission during shifting. The time measuring component measures an amount of time that elapses after the clutch is released. The rotational speed synchronization control component starts rotational speed synchronization control when the clutch is released and a prescribed delay time has elapsed since the clutch was released so that an engine rotational speed matches a predicted input rotational speed of the manual transmission being based on a vehicle speed and a gear position that is occurring after shifting is completed.

Abstract: A method of operating a drive train of a motor vehicle with a hybrid drive having an internal combustion engine, an electric motor, an automatic transmission. The drive train also having a clutch between the internal combustion engine and the electric motor, and a clutch or a torque converter between the electric motor and the automatic transmission. This arrangement enabling the internal combustion engine to be started by engaging the clutch arranged between the internal combustion engine and the electric motor, when the drive train is powered exclusively by the electric motor. The braking power, generated during an upshift in response to a drop in the rotational speed of the drive train components, is used to start the internal combustion engine, such that the energy required from the electric motor for starting the combustion engine is minimized.

Abstract: A clutch control device is used to engage and disengage a clutch of a straddle-type vehicle. A method of using the device comprises detecting a predetermined operation, such as positioning a key switch in an ON position, for starting use of the straddle-type vehicle, detecting application of a brake of the straddle-type vehicle, and actuating clutch control means that disconnects the clutch upon detection of application of the brake if the predetermined operation for starting use is detected.

Abstract: A load determining section of a drive control apparatus for forklift determines a load state related to a loading attachment. In a case where a connection determining section determines switching to a connection state, if the load state determined by the load determining section requires that driving of a vehicle body be limited, a disconnection control section forcibly disconnects a transmission of a driving force to a drive wheel. Thus, the forklift is prevented from being started in a state that is likely to make the driving of the forklift unstable.

Abstract: Disclosed herein is an engine stall prevention system for industrial vehicles. The engine stall prevention system includes a transmission, which is configured such that a hydraulic shuttle valve for performing forward and reverse switching without requiring the operation of a clutch pedal, and a control unit for controlling the shuttle valve. The control unit receives a brake pedal operation signal from a brake detection unit for detecting the operation of a brake pedal, detects the traveling state of a vehicle using a traveling detection unit, determines whether the speed and engine RPM of the vehicle are equal to or less than respective preset values, and performs automatic control such that the shuttle valve enters a neutral state or a half-clutch state if it is determined that the vehicle speed is greater than the corresponding preset value and the engine RPM is equal to or less than the corresponding preset value.

Abstract: A method and apparatus are provided for switching on and off the internal combustion engine which drives a vehicle by way of a manual transmission. The manual transmission is associated with a clutch for producing and releasing the frictional connection between the internal combustion engine and drive train. The clutch has a clutch operator for producing and releasing the frictional connection to the drive train. The clutch is actuable by a driver by way of a clutch pedal. A variable representing the engaging speed of the clutch operator is detected. If this variable exceeds a limit value, the starting of the internal combustion engine is interrupted.

Abstract: A method for monitoring a chain pulley block and a chain pulley block apparatus with an electric actuator motor (2) that is connected at the drive side to a transmission (7) across a sliding clutch (14). In order to achieve a safe operation of the chain pulley block, the speed of the transmission (7) is determined via a sensor (18), the determined speed of the transmission (7) is compared in a control device (19) to the operating speed of the actuator motor (2) as determined from rated duty of the actuator motor (2) and if a deviation is found between the speed of the transmission (7) and the operating speed, allowing for tolerances and any transmission ratio of the transmission (7), the actuator motor (2) is switched off.

Abstract: A stopping position control apparatus of an internal combustion engine includes an engine friction model for calculating the friction around a crankshaft, which calculates friction in the internal combustion engine, and a transmission friction model for calculating the friction around the crankshaft, which calculates friction in a transmission. When a clutch arranged between the internal combustion engine and the transmission is engaged, a crankshaft stopping position is calculated based on the friction calculated by both the engine friction model and the transmission friction model.

Abstract: A method for controlling a diesel engine in a vehicle is presented. The engine comprises at least one cylinder, a fuel injector for each cylinder for injecting fuel into the respective cylinder, and a throttle valve for controlling the flow of air into the cylinder. The throttle valve is adjusted to assume a not fully open position if an amount of fuel injected into the at least one cylinder is equal to or less than a fuel injection threshold value.

Abstract: A control system for a vehicle includes an engine switch control unit for switching the operating condition of the engine between the all-cylinder operating condition and the partial-cylinder operating condition, a failure determining unit for determining the failure of the lockup clutch control device, and a coupling capacity change inhibiting unit for inhibiting a change in coupling capacity of the lockup clutch accompanied by the switch control of the operating condition of the engine by the engine switch control unit during the failure determination by the failure determining unit.

Abstract: A method for clutch actuation at low temperatures for a motor vehicle having a hydraulically actuatable clutch, below a predetermined temperature a situation-dependent pre-opening of the clutch is executed when a braking is probable.

Abstract: The present invention provides a running control device for an industrial vehicle that has superior driving operability and that allows easy starting and stopping on road surfaces that have sloped or stepped surface. The running control device for an industrial vehicle includes an engine, a sensor that detects an operation amount of an accelerator member, a transmission that has a forward clutch and reverse clutch, a brake that applies braking to the vehicle, and a controller. The controller simultaneously controls the engine revolutions, the engaging force of the forward clutch and reverse clutch and the braking force of the brake in accordance with the operation amount.

Abstract: A method for launching an automatic vehicle transmission utilizing dual clutches in place of a torque converter avoids clutch overheating, sudden launch or roll-back by placing a clutch in a slip mode only after the vehicle's brakes have been actuated and fully disengaging the clutch upon over-heating detection. When launch is initiated, a first gear engaged and the brakes are released, the associated clutch is fully engaged to avoid overheating.

Abstract: In a drive train for a working machine, in particular, a wheel loader, the driving speed is preselected via a driving pedal (11) and the working hydraulic system is actuated via a selector lever (8), whose signals are fed to an electronic control unit (10) which regulates a drive engine (1) and a clutch (2) arranged between the drive engine (1) and a pump impeller (3) of a hydrodynamic torque converter in such a manner that an auxiliary drive (6) for a pump (7) of the working hydraulic system is operated at a sufficient speed, while the preselected driving speed is not exceeded.

Abstract: A hydraulic control apparatus for a hybrid vehicle, which enables a smooth torque transmission when an engine of the vehicle is started from an idling stop state. The hydraulic control apparatus includes an engine and a motor as power sources, a transmission having a torque converter, a clutch for a starting gear, an engine automatic stop and start device which is associated with the engine, a motor-driven oil pump for supplying oil pressure to the transmission, a brake pedal sensor, an accelerator pedal sensor, an engine revolution rate sensor. The oil pressure applied to the clutch is controlled to a level corresponding to a creeping torque when the engine is automatically stopped. When the brake pedal is released, the engine is automatically started, the accelerator pedal is not depressed, and the engine revolution rate is less than an idling revolution rate, the oil pressure applied to the clutch is maintained to the level corresponding to the creeping torque.

Abstract: The invention relates to a control device for an engine able to control at least one of an intake valve and an exhaust valve via a driving mechanism actuated without a torque from an output shaft of the engine, and a transmission connected to the engine. The control device includes a torque transmitting device for reducing the torque from the engine while that torque is being transmitted to an output shaft of the transmission, and control means for controlling the torque transmitting device so as to reduce the torque transmitted from the engine to the output shaft of the transmission during an upshift, controlling a engine speed to a target speed after shifting during the unshift, and controlling the torque transmitting device so as to increase the torque transmitted to the output shaft of the transmission after the engine speed is synchronized with the speed after shifting.

Abstract: A mobile vehicle is to be operated at constant speed, during which the speed of the drive engine, which drives a step-down transmission (5) via a hydrodynamic torque converter, varies. To do this, a clutch (2) arranged, between the drive engine and the pump impeller (3), is regulated in such manner that the actual speed of the vehicle corresponds to the specified speed.

Abstract: A method for controlling a vehicle having a first clutch mounted between an engine and a gear drive transmission, and dog clutch type torque transmission means disposed between an input shaft and an output shaft of the gear drive transmission, and wherein the first clutch is controlled at starting the vehicle or at gear shifting, comprising the steps of controlling a transmission torque of the first clutch based on a difference between the engine speed/revolution speed of the input shaft at starting the vehicle so as to control a quantity of increase in a transmission torque of the first clutch in accordance with the value of the difference; and controlling the engine torque based on the transmission torque of the first clutch so as to increase the engine torque according to an increase in the transmission torque of the first clutch.

Abstract: A characteristics change of a control object is functionally represented by a parameter &thgr; which varies between values of 0 and 1 as the gain of the control object is surveyed. The frequency of the identification signal is set at a frequency where the difference in gains becomes large. The amplitude of the identification signal is set so that the variation width of the output of the control object is less than or equal to a predetermined value. Because the identification accuracy improves where the input/output characteristics with respect to the parameter are more sensitive, the identification signal set by such a setting apparatus imparts high identification accuracy. Moreover, because the amplitude of the identification signal is set based on the variation width of the output of the control object, identification can be performed without significantly affecting the output of the control object.

Abstract: A vehicular transmission comprises an engine E, a continuously variable transmission CVT and a starting clutch 5. The driving force from the engine E is conveyed through the continuously variable transmission CVT with a speed change to a countershaft 2, and the starting clutch 5 is used to convey this driving force from the countershaft 2 to wheels of a vehicle. In this power transmission, when the vehicle is decelerated for a halt, the fuel supply to the engine is terminated to decelerate the vehicle. In addition, the starting clutch 5 is released gradually under a predetermined condition, and then the engine E is stopped to bring the vehicle into a halt.

Abstract: A driving force control unit for a vehicle, which allows transmission of driving force from a driving motor to driving wheels irrespective of releasing an accelerator pedal at a certain or lower vehicle speed when a transmission is set in a driving range, and which switches the magnitude of the driving force while the accelerator pedal is released at vehicle speed no more than the certain vehicle speed between a greater condition and a smaller condition in accordance with depression of the brake pedal so that the driving force is made lower at a depression of the brake pedal than at a release of the brake pedal. In the driving force control unit, the driving force value in said greater condition upon switching from said smaller condition to said greater condition, at a release of the brake pedal during the time the vehicle stops, is increased or decreased according to an inclination angle of the vehicle at the time of stopping.

Abstract: A method for controlling a vehicle having a first clutch mounted between an engine and a gear drive transmission, and dog clutch type torque transmission means disposed between an input shaft and an output shaft of the gear drive transmission, and wherein the first clutch is controlled at starting the vehicle or at gear shifting, comprising the steps of controlling a transmission torque of the first clutch based on a difference between the engine speed/revolution speed of the input shaft at starting the vehicle so as to control a quantity of increase in a transmission torque of the first clutch in accordance with the value of the difference; and controlling the engine torque based on the transmission torque of the first clutch so as to increase the engine torque according to an increase in the transmission torque of the first clutch.

Abstract: A first sensor detects whether an engine revolution speed change exceeds a predetermined amount, and a second sensor detects whether an accelerator opening stays within a predetermined range. A controller determines a target amount of fuel injection that is greater than a basic amount of fuel injection when the engine revolution speed change exceeds the predetermined amount and the accelerator opening stays in the predetermined range. The basic amount of fuel injection is determined based on the accelerator opening and engine revolution speed. By feeding a slightly larger amount of fuel than the basic value while an engine brake is applying, the engine revolution speed change is suppressed and shock upon clutch engagement is reduced.

Abstract: A braking device for a power working machine, which is capable of immediately stopping the movement of the working portion when an internal combustion engine is shifted to an idling state, includes a transmission shaft, a brake drum fixed to the transmission shaft, and a brake band wound around the brake drum. The brake band is formed of a leaf spring material band, which is biased to shrink the diameter thereof, one end of which is pivotally supported on a supporting pin, and the other end of which is formed into a bent free end.

Abstract: In order to prevent occurrence of engine stall even when a quick braking is made in a state where a torque converter of an automatic transmission is locked up, the torque converter is locked up in accordance with a throttle opening degree and a vehicle speed, and the lock-up is released at least when the braking operation is carried out. The opening degree B of an idle speed control valve (ISCV) for bypassing a throttle valve simultaneously with the lock-up is set, and the opening degree B is set as an actual control opening degree IV of ISCV when the opening degree B is larger than the opening degree IAV of ISCV which is set in accordance with the load of an engine. When the release of the lock-up is started, the actual control opening degree IV is gradually reduced to the opening degree IAV by a prescribed attenuation amount K. As a result, the engine stall due to a response delay to the release of the lock-up clutch can be prevented.

Abstract: An elevated idle speed control is disclosed for use with an internal combustion engine on a vehicle. The control includes an electronic controller connected to a brake pedal sensor, a clutch pedal sensor, an engine speed determining means, a vehicle speed determining means, and a high idle mode selection means. The control permits a vehicle operator to select a desired high idle speed within a default high idle speed and a maximum high idle speed. The control permits the operator to select a high idle mode as a function of signals from said brake pedal sensor, said clutch pedal sensor, the engine speed determining means, the vehicle speed determining means and the high idle mode selection means.