1490 results about "Manual transmission" patented technology

Lubricating oil compositions having excellent thermal and oxidative stability, wear control, copper corrosion control and compatibility with seal materials comprising a mineral oil having a) a Viscosity Index of greater than 110 and an aniline point of greater than 110 DEG C. and/or b) a linear+single ring paraffin content of greater than 68 wt %, and at least one polymer selected from olefin (co) polymer(s), polyalkyl (meth) acrylate(s) and mixtures thereof. The lubricating oil compositions are particularly useful as manual transmission and axle lubricants.

A method for determining a driver's driving skill of a vehicle using transmission shift information. The method includes providing an ideal transmission shift map based on throttle position and vehicle speed. The method also includes monitoring an actual transmission shift point performed by the driver and comparing an actual transmission shift point to the transmission shift map to identify a shift-error distance on the map. The method also includes comparing the shift-error distance to a predetermined threshold and classifying the driver's driving skill based on the comparison of the shift-error distance to the threshold.

The present disclosure provides systems and methods to detect and reduce any high driveline torsional levels, such as due to the cylinder deactivation in variable displacement system engines or aggressive lock-up strategies for fuel efficiency, in automobile transmissions. The present disclosure utilizes a controller in an automobile to operate a computationally thrifty method for quickly detecting noise and vibration disturbances in the transmission. This quick detection enables fuel economic calibrations that aggressively reduce the disturbances by controlling slip in a launch device of the transmission. As problem disturbances arise, they are detected before occupants notice objectionable behavior. Once detected, the disturbances are reduced, such as by increasing launch device slip, which effectively intercepts the objectionable disturbances before they are transferred through the entire drivetrain. The present disclosure can also apply to launch devices in Dual Clutch Transmissions and Electronically-controlled Manual Transmissions.

A LSG four wheel drive hybrid vehicle drive mechanism with its front wheel drive adopts engine and crankshaft installed disk generator, automatic clutch and manual transmission MT or directly using AMT automatic transmission to form the drive system, with the ISG generator installed on the engine and the automatic clutch or AMT automatic transmission, with the rear wheel drive using rear wheel drive generator, rear wheel drive decelerator and differential formed electric rear axle. The overall drive scheme is simple, effective, low in cost, easy for realization, with relatively ideal vehicle matching and control effect.

A method and system for controlling output torque of an internal combustion engine during a gearshift in an automatic shift manual transmission coupled to the engine is disclosed. The transmission includes a multiplicity of gears and a clutch actuated by a transmission control unit (TCU), which controls clutch disengagement, gear change, and clutch re-engagement. The engine includes an engine control unit in communication with the TCU. The method includes determining engine operator demanded engine torque; sending a signal to the engine control unit in response to actuation of the clutch; and, computing in the engine control unit in response to the sent clutch actuation signal and the determined engine operator demanded engine torque, a control signal for the engine, such engine, in response to such control signal changing engine torque during the gear change to substantially match demanded engine torque when the clutch is re-engaged.

A hybrid drive of a motor vehicle having an automated manual transmission with two input shafts and a common output shaft. The first input shaft can be connected to the drive shaft of an internal combustion engine by a clutch and can be brought into a drive connection to the output shaft by a first group of shiftable gearwheel sets. The second input shaft has a drive connection to the rotor of an electric machine, which can operate as a motor and a generator, and can be brought into a drive connection with the output shaft by a second group of selectively shiftable gearwheel sets. The input shafts can be coupled by coupling-shift element. The hybrid drive is provided with a second electric machine, which can operate as a motor and a generator and has a rotor that can be connected to the first input shaft.

The invention provides a manual transmission lubricating oil composition. The manual transmission lubricating oil composition comprises (a) at least one mineral oil and/or synthetic oil with high viscosity index, (b) at least one viscosity index improving agent, (c) at least one pour point depressant, (d) at least one phosphorus-containing antiwear agent, (e) at least one sulfur-containing extreme pressure agent, (f) at least one friction improving agent, (g) at least one clean dispersion agent, (h) at least one antioxidant, (i) at least one antirust agent, (j) at least one metal deactivator and (k) at least one anti-foaming agent. The manual transmission lubricating oil composition provided by the invention meets the vehicle gear oil viscosity level of 75W/80 or 75W/85, has excellent high-low temperature performances, anticorrosion performance, antirust performance and shearing-resistance performance, especially has excellent synchronizer friction performance, can be used for a manual transmission with a synchronizer, and can be completely suitable for the improvement of oil product performance requirement brought about by technique improvement of the manual transmission at present.

A method of searching for a sync start in an automated manual transmission, may include a slip preparing step of operating, in a parked position, a sleeve and a clutch restrained so as not to rotate into a slip state, an actuator operating step of moving the sleeve toward a clutch gear from a neutral position, a clutch speed determination step of determining whether or not a speed of rotation of the clutch has decreased by the actuator operating step, a stop determination step of determining whether or not a movement of the sleeve that was driven by the actuator operating step has stopped, and a first position determination step of determining a point where the clutch speed determination step determines that the speed of the rotation of the clutch has decreased and the stop determination step determines that the movement of the sleeve has stopped as the sync start.

Devices for enabling a user to locate an object, animal or person or reminding the user of the location of an object, animal or person. In a non-transmitter/receiver embodiment, the device includes at least one alert mechanism which is connected to a digital clock or other timer and microprocessor which times transmission of alert signals emitted from the alert mechanism or mechanisms. The operational components of the device may be contained in a housing which is attached to the object, animal or person to be located. In a remote transmitter/receiver embodiment, the device includes a transmitter which transmits activation signals at preset times to activate an alert feature of a paired remote receiver which is provided on the object, animal or person to be located or tracked. The transmitter may include an on-command button for manual transmission of the activation signals to the receiver. The receiver may have a visible alert mode in combination with a selected audible or vibratory alert mode. In an on-board transmitter/receiver embodiment, the device includes a transmitter which is housed together with a receiver in a single unit. In that case, the transmitter of one unit can transmit preset timed activation signals to the receiver of a different unit which is placed on the object, animal or person. Alternatively, the transmitter of one unit can transmit preset timed activation signals to the receiver of the same unit placed on the object, animal or person.

An evaluation system for vehicle operating conditions which is applied to a vehicle provided with an engine (1) and a manual transmission (8) connected to the engine (1) comprises a sensor (21, 24) for detecting the operating conditions of the engine (1) and a controller (30). On the basis of the operating conditions of the engine (1), the controller (30) determines whether or not the fuel economy of the vehicle would be improved by shifting the transmission (8) upward from the current gear position to a gear position one step further toward a HIGH side, and instructs a driver to shift the transmission (8) upward when it is determined that the fuel economy of the vehicle would be improved by shifting the transmission (8) upward.

A hybrid drive of a motor vehicle having an automated manual transmission with two coaxial input shafts and a common output shaft. The input shafts are respectively driven by an engine and an electric machine and can couple the output shaft via respective groups of gearwheel sets. Each gearwheel set comprises a gear fixed to the associated input shaft and an idler gear supported by respective countershafts. At least two idler gears disposed on one of the two countershafts of two gearwheel sets, within the transmission, assigned to two different input shafts, can be coupled via a winding-path shift element, and the two output constants are disposed in a common radial plane by using a common output gear disposed on the output shaft.

The invention provides a low-friction sliding mechanism, a low-friction agent composition, a friction reduction method, a manual transmission and a final reduction gear unit that can exert very excellent low friction characteristics to sliding surfaces present under various applications, and, in particular, that have more excellent low friction characteristics than that of a combination of an existing steel material and an organic Mo compound. The low-friction sliding mechanism has an oxygen-containing organic compound or an aliphatic amine compound interposed between sliding surfaces that a DLC coated sliding member and a sliding member form. The low-friction agent composition contains an oxygen-containing organic compound or an aliphatic amine compound. The friction reduction method includes supplying the low-friction agent composition between sliding surfaces that a DLC coated sliding member and a sliding member form. The manual transmission includes, as at least one of sliding members, a DLC coated sliding section. The final reduction gear unit includes, as at least one of sliding members, a DLC coated sliding section.

The invention discloses a vehicle operation remind control method. The method includes the steps of 1, acquiring the driving intention information of a driver according to the speed information, the accelerator pedal opening degree information and/or speed information; 2, selecting a power shifting rule table or fuel economy shifting rule table according to the driving intention information of the driver; 3, querying the power shifting rule table or fuel economy shifting rule table to acquire the shifting speed according to the vehicle current gear information, engine load information and vehicle speed information; 4, determining a reminding time point according to the vehicle speed information and shifting speed, and reminding the driver when the reminding time point is reached. The method has the advantages that the characteristics of a manual transmission vehicle can be played completely, the power efficiency, economy efficiency, driving comfort and maneuverability of the vehicle can be improved, and the driving safety is guaranteed.

An automated shifting system for a manual transmission having a neutral clutch connecting an engine to a multiple ratio transmission, the transmission having servo operated gear shift mechanism. A driver-controlled gear shift switching mechanism is used to activate the servos that effect ratio range changes. A gear shift switching mechanism includes multiple switches for triggering operation of the servos that control the ratio range changes. A range sensing redundancy strategy for the ratio range switches provide improved protection against an unintended change in direction due to three-bit separation between bits of the valid codes and to a range sensing switch failure strategy by identifying when a range change commanded by the driver exhibits a single-point fault condition. A fault condition due to a single-point sensing switch failure is identified even in those instances when a range change commanded by the driver allows continued normal control system operation, although the driver is notified of the failure by a system warning device.

A shift fork position detecting device for a manual transmission is provided. The manual transmission includes a coupling sleeve constituting a synchronizer, a shift fork movable with the coupling sleeve and an actuator for moving the shift fork. The actuator has a stationary main body and a reciprocal output member operatively connected to the shift fork. The shift fork position detecting device includes a magnet mounted on the output member of the actuator, and a magnetic sensor mounted on the main body of the actuator to cooperate with the magnet for detecting the position of the shift fork.

A gearshift to transmission controller interface is based on a controller area network and a gearshift interface interposed between the gearshift and associated displays and the network bus. The shift controller can be made universal to all transmission types of automated manual transmissions by incorporation of a library program relating to a transmission type.

A hybrid vehicle is provided with an engine, a starter generator motor, a traction motor, an automatic manual transmission system, a battery, an automatic-switching clutch, and a control unit assembly. The starter generator motor is coupled and synchronously rotates with the engine for starting the engine and serving as an assistant power. The automatic manual transmission system is coupled with the traction motor and performs a gear-shifting/speed changing by controlling the rotation speed of the starter generator motor and the traction motor. The automatic-switching clutch is coupled between the starter generator motor and the automatic manual transmission system to make them be engaged/disengaged so as to switch the power type. The hybrid vehicle control device gives a signal to the torque/rotation speed control device to control the automatic-switching clutch to engage/disengage the engine and the traction motor according to the running state of the vehicle.

The invention discloses a control method of automobile starting for a manual transmission, which is characterized in that an electronic control unit (ECU) collects clutch displacement signals to identify starting intension according to a clutch stroke sensor and adds an engine throttle valve, and increases the speed of an engine and the torque of the engine step by step before the clutch engages. The steps are as follows: first step, a driver presses a clutch to enable the clutch to be completely separated, and the torque of the engine is fundamentally kept unchanged; second step, the driver is loosening the clutch to be about to start the automobile and enables the clutch to change from complete separation to half engagement, and the torque of the engine gradually increases; and third step, the driver completely loosens the clutch to finish starting the automobile and enables the clutch to be completely engaged, and the torque of the engine recovers normal control logic. By means of the method, rotating speed and torque of the engine can be increased in advance before half engagement of the clutch so that starting stability is ensured, and starting flameout is avoided.

The invention relates to a driving system of an all wheel drive hybrid powered vehicle, which belongs to the technical field of automobile manufacture. In the driving system, automatic and manual transmissions are arranged on an automobile front wheel shaft; an input end of the automobile front wheel shaft is connected with an automatic transmission controller; the automatic transmission controller is respectively connected with an engine controller and a vehicle controller through a local area network cable; an engine is respectively connected with the engine controller and an automobile oil tank; a vehicle information display is connected with the vehicle controller; a motor controller is respectively connected with the vehicle controller and a battery management system through the local area network pipeline; the driving motor is connected with the motor controller, connected with the battery management system through a battery, and connected with a rear-wheel drive deceleration differential through a electromagnetic clutch; and the rear-wheel drive deceleration differential is arranged on an automobile rear wheel shaft. The driving system of the invention has the advantages of relatively simple and efficient vehicle transmission scheme, low cost, and easy engineering realization.

A twin-clutch manual transmission including: first and second input shafts provided with respective clutches; a counter shaft parallel to these input shafts; gear sets of an odd-numbered gear range group disposed between the rear end portion of the first input shaft and the counter shaft; gear sets of the even-numbered gear range group disposed between the second input shaft and the counter shaft; an output shaft being concentric with and abutting on a rear end of the first input shaft; and a synchronizer provided between the rear end of the first input shaft and the output shaft to provide a direct-coupling gear range. The odd-numbered gear range group includes the direct-coupling gear range.