In accordance with an aspect of the present disclosure, cruise control of an automotive vehicle in a fuel economy cruise control mode controls vehicle speed to be within a fuel economy speed band about a cruise control set speed so that instantaneous fuel economy is at least equal to average fuel economy.

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 vehicle computer system controls downhill speed of a vehicle having a cruise control system and an engine retarder system. 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 system 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.

Provided is an electric brake system that changes responsiveness depending on responsiveness required for an electric brake device, thereby enabling operation sound and power consumption to be reduced without influencing movement of a vehicle. The electric brake system includes one or more electric brake device (3) each having a control operation module (12) for performing follow-up control for a target braking force. The electric brake system includes a response requirement determination module (14) for determining responsiveness required for the brake actuator (4) from one or both of a braking requirement and the vehicle travelling condition. The braking requirement is outputted from a brake operation member or a vehicle-stable-travelling control system. The electric brake system includes a control modification module (15) for changing a control operation formula to be used for follow-up control by the module (12), depending on responsiveness determined by the module (14).

A shift control system for an industrial vehicle includes a vehicle speed monitor, a vehicle speed limit value setting section, a gear determination section, and a control section. The vehicle speed monitor is configured to monitor and detect an actual vehicle speed of the industrial vehicle. The vehicle speed limit value setting section is configured to set a vehicle speed limit value. The gear determination section is configured to select a transmission gear position of the transmission based on the actual vehicle speed and the vehicle speed limit value. The control section is configured to control the transmission in response to the selected transmission gear position. The gear determination section maintains the transmission in the currently-selected transmission gear position when the vehicle speed limit value is equal to or less than a predetermined threshold value and the threshold value is greater than an upshifting vehicle speed for upshifting the transmission.

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.

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 work vehicle may include a load sensor, an engine, a drive train driven by the engine and a track system including at least one track. The track system is connected to the drive train. The work vehicle may further comprise a temperature sensor configured to sense a temperature and a vehicle control system configured to receive the sensed temperature and a vehicle load from the load sensor. The vehicle control system is configured to output a work speed vehicle alert based upon a combination of the temperature sensed by the temperature sensor and the vehicle load sensed by the load sensor.

Systems and methods for a materials handling vehicle configured to navigate along a warehouse environment inventory transit surface, the vehicle including control architecture in communication with a drive mechanism, a materials handling mechanism, a speed zone sensing subsystem configured to provide an indication of whether the vehicle is in a speed zone, and a speed control processor configured to prompt the operator to reduce a vehicle speed of the vehicle to under a speed zone limit when the vehicle speed is approaching or in the speed zone, determine whether the vehicle speed is under the speed zone limit in the speed zone, and apply a speed cap to limit a maximum vehicle speed of the vehicle to a magnitude that is at or below the speed zone limit when the speed control processor has determined that the vehicle speed is under the speed zone limit in the speed zone.

The GPS-based vehicular speed limiting system comprises an on board diagnostic (OBD) interface unit and a GPS unit. The OBD interface unit plugs into the OBD-2 (or equivalent) connector inside the passenger compartment of a vehicle and communicates with one or more vehicle computers. The GPS unit receives signals from GPS satellites to determine the current vehicle location, which it may then display in map form utilizing map data stored in memory within the GPS. If the OBD interface unit determines that the vehicle is traveling faster than the posted speed limit, as determined by information stored in the map data and communicated to the OBD interface unit over the wireless link, the OBD interface unit may command the vehicle computers to limit the speed of the vehicle. Unplugging the OBD interface unit may result in a notification being sent to a smartphone.