Hyundai Motor Company

Kia Motors Corporation

Sl Corporation

Hangil Park

Changhyun Lee

Yang-Rae Cho

Jeongho Park

Byung-Ki Kim

Bum-Sik Lee

Sungil Lee

Sunghoon Lee

Jaesung Heo

Kiyoung Song

Namsik Baek

A vehicle may include a transmission control unit (TCU) to output a control signal to the transmission; a shift lever; a shift lever electronic control unit (ECU) to transmit a first signal and a second signal, to the TCU; a main communication unit to perform communication between the TCU and the shift lever ECU; a backup communication unit to perform communication between the TCU and the shift lever ECU; and a controller configured to: control the shift lever ECU to transmit first and second signals based on one of a plurality of matching codes having different pulse width modulation (PWM) duty ratios assigned to the respective gear positions of the transmission; determine another one of the plurality of matching codes when the operation commands indicated by each of the first signal and the second signal received by the TCU are different; and control the shift lever ECU based on the determined matching code.

Vehicle and method of controlling the same

A transmission parking system is provided. The system includes a parking gear and a parking rod that is connected with the parking gear. Additionally, a parking lever has a first end that is connected with the parking rod and the parking lever is installed rotatably around a control shaft. A detent return spring is wound around an exterior circumference of the control shaft, supports the parking lever, and provides elastic force to rotate the parking lever and return to an original position. A control lever is installed rotatably around the control shaft and is installed at an exterior side of the parking lever to allow user operation. A neutral state maintaining lock and release device is connected with the control lever and is changed to a neutral state lock or a neutral state release based on operation of the control lever.

Transmission parking system including neutral state maintaining lock and release device

A method of controlling a vehicle washing mode for a vehicle equipped with shift-by-wire shifting device, may include performing an N-range-off determining step that determines whether a shift lever is in an N-range when an engine stops, performing an ACC determining step that determines whether the vehicle is in an ACC state, and performing a shifting step that shifts a P-range state of a transmission to a N-range state thereof by operating an actuator, when the N-range-off determining step determines that the shift lever is in the N-range when the engine was stopped, and when the ACC determining step determines that the vehicle is in the ACC state.

Method of controlling vehicle washing mode for vehicle equipped with shift-by-wire shifting device

The automatic transmission system includes a shift lever for changing stages by a user, a shift-lock device for fixing or releasing the shift lever, and a control unit including a shift control logic changing the stages of the transmission in accordance with the stage changed by the shift lever and a shift-lock control logic controlling the shift-lock device by stages for an initial time and a maintenance time after the initial time from when the stages may be changed such that the shift lever may be fixed, in order to shift-lock the shifted shift lever when the stages may be changed by the shift control logic.

Transmission system for shift by wire

A control method for a parking release apparatus of a shift-by-wire shifting device can improve the commercial value of a vehicle by improving safety of the vehicle and preventing robbery, by interfering with or preventing an attempt of abnormally and manually releasing a parking state of the vehicle when there is no problem in the electric system of the vehicle, using a part provided to be manually operated in the parking release apparatus such that a P-stage state and an N-stage state can be manually switched when a problem, such as discharge, occurs in the electric system, in the vehicle equipped with a shift by wire apparatus.

Control method for parking release apparatus of shift-by-wire shifting device

The present invention relates to a method for controlling a TCU fail-safe using an electronic shift lever. A failure state of TCU is verified through CAN BUS (serial communication, or hardware wire) using an electronic shift lever unit, and a parking sprag is forcibly unlocked from a parking gear by pulling an override cable for parking by the an electronic shift lever unit when TCU being in the failure state, so that the implementation of fail-safe according to a failure of TCU is accomplished with higher control stability than using a transmission and without an addition of a component or a change of design.

Method for controlling TCU fail-safe using electronic shift lever

A transmission shifting apparatus of a vehicle, may include a shifter movably installed along at least two straight paths which meet each other at one point, respectively, wherein at least two fixed points are arranged adjacent each other in at least one of straight paths, in which the shifter maintains a position thereof unless an external force is applied thereto, wherein the straight path having the at least two fixed points has a structure extending outwardly to both sides of the at least two fixed points, and wherein one of the at least two fixed points in the straight path is formed to meet the other straight path of the at least two straight paths.

Transmission shifting apparatus for vehicle

An apparatus for releasing a parking state of a shift-by-wire shifting device may include a housing fixed to a vehicle body, a driving screw rotatably coupled to the housing and threaded, a slider engaged to the driving screw and slidable along the driving screw, and a cable connected to the slider and transmitting a sliding motion of the slider to a transmission.

Apparatus for removing parking state of shift-by-wire shifting device

An electronic shifting apparatus for a vehicle may include an operator movable along at least two or more straight paths, a shift lock assembly controlling a movement of the operator, a sensor detecting changes in position of the operator, a P-switch for selecting a P-range, a safety switch receiving an input from a driver, a controller outputting a shifting signal for controlling a transmission, wherein one of the straight paths sequentially have an R-temporary point for selecting a R-range, an NR-fixing point and an ND-fixing point for selecting an N-range, and a D-temporary point for selecting a D-range, wherein the ND-fixing point is connected with another straight path connecting an M-fixing point for selecting a neutral state in an manual mode, and both sides of the M-fixing point are connected with a (+)-temporary point (+) and a (&#x2212;)-temporary point (&#x2212;) through another straight line to operate the manual mode.

Electronic shifting apparatus for vehicle

An accelerator pedal device with variable pedal effort, may include an elastic member that applies a restoring force in a return direction to an accelerator pedal rotatably coupled to a vehicle body, at least a pedal effort providing elastic member coupled to the vehicle body and providing a pedal effort in an operation direction of the accelerator pedal, and at least a locking pin mounted to the vehicle body and being selectively engaged with at least one of the at least a pedal effort providing elastic member to disable an operation of the selected pedal effort providing elastic members to adjust sequentially the pedal effort of the accelerator pedal.

Accelerator pedal device with variable pedal effort

An organ type accelerator pedal assembly may include a vibration generating module coupled to a carrier connected with a foot plate, and engaged with a first actuator through a power transfer member to bring a vibration to the carrier, a pushing-force generating module actuated by a second actuator and movably disposed under the vibration generating module to provide a pushing-force to the foot plate when contacting with the vibration generating module, and/or a control unit controlling the first actuator and/or the second actuator.

Organ type accelerator pedal assembly

An accelerator pedal system includes a pedal control unit that receives a vehicle speed signal and a signal from a switch, and compares the two signals. If the vehicle speed exceeds a preselected speed, the pedal control unit outputs a control signal to control a reaction force of an accelerator pedal on the basis of the preselected speed and a selected mode. The system also includes a reaction device that receives the control signal and controls the accelerator pedal according to the selected mode. The reaction device includes an actuator for generating power on the basis of the control signal, a power delivery unit for selectively transmitting the power generated by the actuator, and a wheel for receiving the power from the power delivery unit and transmitting the power to the accelerator pedal.

Accelerator pedal system

An accelerator pedal system includes a vehicle speed sensor outputting a vehicle speed signal, an accelerator pedal, and a switch that generates a signal corresponding to at least one predetermined speed and a selected mode. An engine management system receives the signals from the vehicle speed sensor and the switch. A pedal control unit receives the vehicle speed signal and the switch signal, and outputs a control signal if a vehicle speed exceeds the predetermined speed. A reaction device is physically attached to the accelerator pedal and electrically connected to the pedal control unit. The reaction device applies force to the accelerator pedal based on the control signal.

An accelerator pedal system that controls a reaction force of an accelerator pedal in a case that a vehicle speed exceeds a predetermined speed includes: a vehicle speed sensor; an accelerator pedal connected to a rod having a predetermined shape; a switch that generates a signal corresponding to at least one predetermined speed limit and a selected mode among a plurality of predetermined modes; an engine management system that receives signals from the vehicle speed sensor and the switch; an accelerator pedal position sensor that detects an operating position of the accelerator pedal and generates a corresponding signal; a pedal control unit that receives a vehicle speed signal and a switch signal from the engine management system, and outputs a control signal when a vehicle speed exceeds the speed limit; and a reaction device that is disposed to an upper portion of the accelerator pedal, and that, in response to the control signal of the pedal control unit, generates a reaction force depending on the selected mode, and applies the generated reaction force to the accelerator pedal. By the accelerator pedal system of the present invention a driver can drive a car with more safety.

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Hwaseong-si, South Korea

Hangil Park