A driving assistance device enables a driver who manually performs an accelerator operation and a steering operation to easily retain an accelerator operation state in a constant state. A driving assistance device includes a manually operable accelerator operation unit in the vicinity of a steering wheel provided in front of a driver seat in a vehicle cabin. The accelerator operation unit is operable in a state where the steering wheel is gripped and an operation reaction force of the accelerator operation unit exhibits an inflection point POI at which the operation reaction force rapidly becomes large in response to an increase in an operation amount of the accelerator operation unit.

A driver assistance system is provided that allows a driver to easily perform an accelerator operation by a finger of his/her hand while grasping a steering holding section. The driver assistance system includes an operation member near a steering wheel held by a driver, which rotates about a rotation shaft in a vehicle front-rear direction and thereby steers the vehicle. The operation member has an operation section that the driver can manually operate to accelerate/decelerate the vehicle, and includes a support member on the steering wheel, the support member supporting the operation member in a slidingly displaceable manner along a steering axial direction. The operation section is disposed near a radially inner side of a rim section of the steering wheel, and the operation section and the rim section overlap in the steering axial direction within a movable range of the operation member along the steering axial direction.

A throttle attachment includes an attachment portion configured to engage a throttle of a vehicle, and an elongate handle extending from the attachment portion. Rotation of the elongate handle causes rotation of the throttle attachment.

A method for accelerating a vehicle from rest, including controlling an engine according to a first control strategy; receiving a mode indication selecting a launch control mode for accelerating; controlling the engine according to a second control strategy; in response to greater than zero accelerator position, controlling to increase throttle valve opening and engine control operational conditions to limit engine torque output; while in the second control strategy, receiving an indication to end control by the second control strategy; and in response to indication, controlling according to the first control strategy causing the vehicle to accelerate from rest, the first acceleration rate greater than the second rate corresponding to accelerating from rest after sequentially controlling according to the first and second control strategies; the second acceleration rate corresponding to accelerating from rest by controlling according to the first control strategy without previously controlling according to the second control strategy.

The present invention provides a hand acceleration control system to control and set Engine RPM at constant speed. The hand acceleration control system is controlled by a rotating switch (20) preferable positioned on a steering wheel.

Various personal mobility vehicles, such as scooters, are disclosed. The scooter can include at least one battery and motor for powering at least one driven wheel. The vehicle can include a gear assembly to convert a torque produced by the motor to a different torque to a driven shaft to power the at least one driven wheel. The battery can be removable.

A utility vehicle includes traveling devices 11, 12 that support a travel body on a ground surface; a motive power unit provided on the travel body; a power transmission device 20 that transmits motive power from the motive power unit to the traveling devices 11, 12 as travel power; a speed change operation tool 18 that changes a vehicle speed, which is the speed of the travel power, a vehicle speed limiting operation tool 34 that sets an upper limit of the vehicle speed, and a vehicle speed limiting operation prohibition unit 35 that prohibits operation of the vehicle speed limiting operation tool.

Various personal mobility vehicles, such as scooters, are disclosed. The scooter can include at least one battery and motor for powering at least one driven wheel. The vehicle can include a gear assembly to convert a torque produced by the motor to a different torque to a driven shaft to power the at least one driven wheel. The battery can be removable.

A hand control throttle system includes an actuating mechanism and a sensor. The system is mounted to a standard steering wheel for a vehicle, so that a disabled driver can operate the throttle using a single hand (either right or left) while the hand is also holding the steering wheel.

An operating device for a working vehicle includes an operating lever to cause the working vehicle to perform various functions, and a selector to select an operation mode of the operating lever. The operating lever is configured such that function(s) of the working vehicle to be performed in accordance with an instruction received by the operating lever vary depending on the operation mode selected via the selector. Furthermore, the operating lever is pivotally supported and is configured such that function(s) of the working vehicle to be performed in accordance with an instruction received by the operating lever being pivoted vary depending on the operation mode selected via the selector.