A multipurpose vehicle includes an engine that has a plurality of cylinders, a traveling vehicle body that has a traveling device that is driven based on a driving force of the engine, a man-operable accelerator operating tool, a controller that controls a fuel injection quantity with respect to the plurality of cylinders of the engine based on an amount of operation of the accelerator operating tool, and a vehicle speed sensor that detects a traveling speed of the traveling vehicle body. If the traveling speed of the traveling vehicle body reaches or exceeds a set maximum traveling speed, the controller suppresses the fuel injection quantity supplied with respect only to one/some of the plurality of cylinders, irrespective of the amount of operation of the accelerator operating tool.

Embodiments of the present disclosure include a wheelchair configured to reposition an occupant between a lowered and a raised position. The wheelchair can include a frame, a seat moveable relative to the frame, a drive wheel, and one or more pairs of arm assemblies. The arm assembly includes a wheel configured to move from a first spatial location when the wheel chair is operating on flat, level ground to a second spatial location that is different than the first spatial location. Arm limiters that can selectively engage the arm assembly dependent on the position of the arm assembly and surface conditions of ground and can limit the range of motion of the arm assembly and sometimes other operational aspects of the chair.

A vehicle computer system controls downhill speed of a vehicle having a cruise control and an engine retarder. The system receives a request to increase engine retarder demand. In response, the system increases an engine retarder demand setting and, if cruise control is active, decreases a downhill speed control (DSC) cruise control offset. The engine retarder system may automatically activate to reduce the vehicle speed to a cruise control set speed plus the DSC cruise control offset. In an embodiment, the request to increase engine retarder demand is generated in response to operator input via an engine retarder demand input device (e.g., a steering-column-mounted control stalk). The system may also receive a request to decrease engine retarder demand in the engine retarder of the vehicle. In response, the system decreases the engine retarder demand setting and, if cruise control is active, increases the DSC cruise control offset.

A vehicle includes an antenna system and a controller. The controller may be configured to, responsive to wireless energy, received via the antenna system, exceeding a magnitude and duration indicative of a cellular connection from a nomadic device at a predetermined position in the vehicle in an absence of a connection with the device via a local protocol while the vehicle is in motion, operate a powertrain to limit a speed of the vehicle.

Disclosed is a solution to the use of a speed limiter in a motorcycle that has a high capacity for acceleration, including a method for limiting the speed of a motorcycle using precise parameters of speed, acceleration and required engine torque and a single control button to manage the smart activation and deactivation of the limiter and to input new speed limits V.sub.lim in a simple way. It thus allows the use of a speed-limiting system in a motorcycle that has a high power/weight ratio by avoiding the sources of interference with the riding and the effects liable to jeopardize its stability.

Embodiments of the present disclosure include a wheelchair configured to reposition an occupant between a lowered and a raised position. The wheelchair can include a frame, a seat moveable relative to the frame, a drive wheel, and one or more pairs of arm assemblies. The arm assembly includes a wheel configured to move from a first spatial location when the wheel chair is operating on flat, level ground to a second spatial location that is different than the first spatial location. Arm limiters that can selectively engage the arm assembly dependent on the position of the arm assembly and surface conditions of ground and can limit the range of motion of the arm assembly and sometimes other operational aspects of the chair.

Embodiments of the present disclosure include a wheelchair configured to reposition an occupant between a lowered and a raised position. The wheelchair can include a frame, a seat moveable relative to the frame, a drive wheel, and one or more pairs of arm assemblies. The arm assembly includes a wheel configured to move from a first spatial location when the wheel chair is operating on flat, level ground to a second spatial location that is different than the first spatial location. Arm limiters can selectively engage the arm assembly based on at least one of a seat position, position of the arm assembly and surface conditions of ground surface. The arm limiters can limit the range of motion of the arm assembly and sometimes other operational aspects of the chair.

A control apparatus of a straddle vehicle includes: a prediction section that determines whether a rider of the straddle vehicle intends to turn the straddle vehicle and predicts whether turning of the straddle vehicle will occur, based on information related to at least one of a predetermined behavior exhibited by a vehicle body of the straddle vehicle before turning and a predetermined driving operation performed by the rider; and a vehicle control section that provides driving assistance during turning of the straddle vehicle based on a result of the prediction made by the prediction section.

One or more techniques and/or systems are disclosed for limiting a speed of a vehicle. A speed control device, operably coupled with a vehicle management system, can be configured to limit an engine speed based at least upon: an identified speed of the vehicle; a pre-determined speed limit for a location of the vehicle, identified in real-time; and a pre-determined speed threshold for the vehicle. A networking component, communicatively coupled with the speed control device, can be configured to communicate wirelessly with a remote computing device to provide the speed threshold information from the remote computing device to the speed control device, and to provide vehicle-related information to the remote computing device. Additionally, the remote computing device can comprise an application that allows a user to provide the speed threshold information and receive the vehicle-related information.

Provided is a traveling apparatus including an adjusting mechanism configured to adjust a wheel base length between a front wheel and a rear wheel by an action of the user being transmitted, a command accept unit configured to accept a command for traveling forward or backward from the user, and a control unit configured to, while the command accept unit accepts the command for traveling forward, control a driving unit to drive the traveling apparatus to travel forward based on a forward target speed associated with the wheel base length in such a way that the greater the wheel base length, the greater the forward target speed becomes, and while the command accept unit accepts the command for traveling backward, control the driving unit to drive the traveling apparatus to travel backward based on a backward target speed associated with the wheel base length.