F16H61/0204

Shift range control device

A shift range control device includes a signal receiver, an abnormality monitor, and a drive controller. The signal receiver acquires an encoder signal from an encoder capable of outputting three or more phase encoder signals having different phases. The abnormality monitor monitors an abnormality of the encoder. The drive controller controls drive of a motor by switching an energized phase of a motor winding so that a rotation position of the motor becomes a target rotation position according to a target shift range. When the abnormality of the encoder is detected, the driver controller drives the motor by faulty phase identification control to identify a faulty phase that is a phase in which an abnormality of the encoder signal occurs, and a normal phase in which the encoder signal is normal.

Control apparatus for linear solenoid valve

A control apparatus for a linear solenoid valve configured to regulate a hydraulic pressure in a vehicle transmission. The control apparatus includes a hydraulic control portion configured to output a control command signal that is applied to a solenoid of the linear solenoid valve. The hydraulic control portion outputs, as the control command signal, a regulating control command signal by which the hydraulic pressure is to be regulated to a regulated pressure value that is dependent on a vehicle driving state. When the regulated pressure value is in a certain pressure range in which vibration-based noise is likely to be generated by vibration of the linear solenoid valve that is operated with the regulating control command signal being applied to the solenoid, the hydraulic control portion outputs, as the control command signal, a noise-restraining command signal by which generation of the vibration-based noise is restrained.

Control device of automatic transmission for vehicle

The disclosure provides a control device of an automatic transmission for vehicle, which can improve the responsiveness to switching to a reverse stage. The automatic transmission includes: planetary gear mechanisms which transmit the driving force input to an input shaft to an output member; and first to third clutches and first to fourth brakes as engagement mechanisms capable of establishing shift stages by switching a transmission path of the driving force in the planetary gear mechanisms. The control device executes a reverse preparation process for starting engagements of the first and third clutches and the third brake and stopping rotation of the input shaft when the reverse stage is selected when the fourth brake (mechanical engagement mechanism) is in a unidirectional rotation allowed state (first state) and the vehicle is traveling at a vehicle speed greater than a highest vehicle speed at which the reverse stage is establishable.

CONTROL APPARATUS FOR TRANSMISSION OF AGRICULTURAL WORK VEHICLE AND CONTROL METHOD FOR TRANSMISSION OF AGRICULTURAL WORK VEHICLE
20210396308 · 2021-12-23 ·

The present invention relates to a control apparatus and a control method for a transmission of an agricultural work vehicle, the control apparatus comprising: a forward/backward clutch of a forward/backward shifting unit that performs forward/backward shifting with respect to drive generated by an engine; and a drive clutch of a drive shifting unit that performs drive shifting with respect to the drive generated by the engine

Automotive transmission control apparatus
11204095 · 2021-12-21 · ·

Provided is an automotive transmission control apparatus. The automotive transmission control apparatus includes: a housing; a main shaft provided in the housing; a driving unit coupled to the main shaft and configured to be driven based on a signal for controlling a gear position of a transmission; a reduction unit housed within the driving unit; and an output unit to receive a rotational force of the reduction unit and output the rotational force with a reduced rotational speed. The reduction unit includes: an inner gear member coupled to the main shaft and including a first gear portion and a second gear portion; and an outer gear member fixed to the housing and including a first receiving gear portion engaged with the first gear portion. Further, the output unit includes a second receiving gear portion engaged with the second gear portion.

ABNORMALITY CAUSE DETERMINING DEVICE, VEHICULAR CONTROL DEVICE, AND VEHICULAR CONTROL SYSTEM

An abnormality cause determining device that is applied to a vehicle including an electromagnetic actuator includes a storage device and an execution device. The storage device is configured to store map data which is data for defining a map. The map includes a current variable which is a variable indicating a current flowing actually in the electromagnetic actuator as an input variable and includes a cause variable which is a variable indicating a cause of an abnormality of an onboard unit including the electromagnetic actuator as an output variable. The execution device is configured to perform an acquisition process of acquiring a value of the input variable based on a detection value from a sensor which is mounted in the vehicle and a calculation process of calculating a value of the output variable by inputting the value of the input variable to the map.

Method and system for controlling engine on of hybrid vehicle

A method of controlling engine on of a hybrid vehicle, may include determining, by a controller, a shift pattern of the vehicle between multiple regions; deriving, by the controller, a shifting possibility of the vehicle from each of the regions; and deriving an engine-on strategy of the vehicle on the basis of the derived shifting possibility, and controlling an engine of the vehicle to be on or off in accordance with the derived engine-on strategy.

Two-speed transmission system integrated with inner rotor hub motor and electric vehicle using same

A two-speed transmission system integrated with an inner rotor hub motor, including an inner rotor hub motor, a steering knuckle, a fastening screw, a first transmission casing, a second transmission casing, a screw, a first planetary gear train, a second planetary gear train, a first electromagnetic brake, a second electromagnetic brake, a tire, a wheel rim, a rim bolt, a rim nut, a wheel hub, a shaft end bolt, a brake disc and a brake caliper. This invention also provides an electric vehicle, which balances the requirements for dynamics performance and driving economics and achieves better overall performances. The two-speed transmission system of this invention realizes gear shifting and long-term no-power parking braking.

Method for handle-operated automatic start and stop of marine engine
11359570 · 2022-06-14 · ·

A method for automatically starting and stopping engine(s) of a vessel based on the position of a handle. Automatic starting occurs by activating an ignition circuit, receiving a signal indicating handle position, and providing a signal to start the engine when the handle is out of neutral position. A signal to shift the transmission into gear is sent when the handle is in an idle position. Automatic stopping of the engine includes receiving a signal the handle is in neutral, receiving status information of the engine, and providing a signal to stop the engine when the handle is in neutral and either the engine is not running or at least one of a number of conditions are met. A shutoff timer may delay auto stop of the engine, which may reset whenever any of the conditions ceases to be true.

TRANSMISSION DEVICE AND METHOD OF CONTROLLING TRANSMISSION DEVICE

This transmission device includes a mode changeover switch (59) on which a mode changeover operation between a manual mode (M2) and an automated mode (M1) is externally performed, other operation unit (80) on which a predetermined shift operation is externally performed separately from the mode changeover switch (59), and a control unit (60) configured to control a mode changeover between the manual mode (M2) and the automated mode (M1). The control unit (60) executes the mode changeover between the manual mode (M2) and the automated mode (M1) on the basis of the mode changeover operation on the mode changeover switch (59). When the shift operation on the other operation unit (80) has been performed, the control unit (60) executes the mode changeover between the manual mode (M2) and the automated mode (M1).