Abstract:
An apparatus for detecting the presence of an object on the threshold of a vehicle mobility access device (10) such as a wheelchair lift or ramp. A movable plate (72) that covers the baseplate (20) of the access device and activates one or more elements which may provide a warning signal or disable the access device.
Abstract:
A vehicle access system for moving a passenger between the vehicle and ground. Some embodiments have an electrical system, a motive source coupled to the electrical system, an arm coupled to the motive source, a platform coupled to the arm, and a safety restraint system coupled to the electrical system and the platform. The vehicle access system has at least a vehicle access position and a ground access position, wherein the passenger can safely access the platform at either access position. The platform is unable to move from either access position until the safety restraint system is in place. Once operation of the access system has begun, it can continue to operate and move the passenger to one of the access positions even if the safety restraint system is subsequently removed.
Abstract:
A system and method for detecting the presence of an object on the threshold of a vehicle wheelchair lift (10). An embodiment of the invention provides a capacitance sensor (100) for use in the vehicle wheelchair lift system. The sensor includes a first plate (102), a second plate (104), and a plurality of separators (106). The first plate is affixed to a baseplate (20) of the vehicle wheelchair lift, and referenced to ground potential. The second plate is parallel to the first plate, and is in communication with a controller (160). The separators are constructed and arranged between the first and second plates, and elastically couple the plates. Other embodiments may provide for alternative system and device configurations.
Abstract:
An access system for a vehicle includes a gateway module that connects to the vehicle data bus, and an interface system coupled to the gateway module via a gateway bus. The interface system is also coupled to a ramp control subsystem that operates to stow and deploy a ramp for providing wheelchair access to the vehicle. A door control subsystem is coupled to the vehicle data bus and operates in response to data signals sent over the vehicle data bus. The gateway module is configured to relay signals relating to the status of the ramp from the gateway bus to the vehicle data bus to coordinate operation of the door and the ramp.
Abstract:
A wheelchair lift system having a stacking platform for use in conjunction with a vehicle. The wheelchair lift platform includes a first portion with an elongated support having fixed and moveable platform sections and a linear actuator powerable for moving between outboard and inboard positions. When stored in an upright, vertical orientation, one section of the platform is stored in a stacking or overlapping fashion behind the other section and stored upright inside the vehicle. Upon deploying the platform to its horizontal orientation, the two sections of the platform form one continuously coplanar lifting platform with the moveable platform section moving relative to the fixed platform section. A linkage system couples the moveable platform section for linear movement with the linear actuator for an orientation with the moveable platform section stowed as being stacked or overlapping with the fixed platform section. The actuator may further employ a pulley with a connector coupled to turn the pulley and a drive to move the platform.
Abstract:
An interface system prevents operational interference between a vehicle power door and a ramp of an access system by interrupting power to the motors and actuators responsible for operating the door. The interface system includes a relay system that does not interrupt, read, signal, or otherwise interfere with the communication lines between a body control unit, door control unit, or remote control transmitter or receiver. Thus, the interface system functions without the need to receive and transmit signals on the vehicle's communication bus. The interface system enables the ramp controller of the access system to be a separate module, which controls the ramp and kneel functions, because the only input the ramp controller provides to the power door system is to a ground signal that mimics that of a switch included in the vehicle.
Abstract:
Systems and methods are provided for electric field sensing of the presence of an object on a mobility access device (10) such as a wheelchair lift (408) or ramp, and disabling the device from operating. One or more electrodes (422) are installed on a wheelchair lift (418) or ramp to produce electric fields. An electric field imaging device receives inputs from the electrodes, and is able to discriminate changes in the electric field. By connecting the electric field imaging device to a controller (408), several electrodes may be selected sequentially to detect an object in various locations, or to determine an object's size and shape. When the electric field imaging device senses an object, the controller, in communication with the electric field imaging device (416), can display a vehicle function such as storage of a wheelchair lift (418), so that user injuries are prevented.
Abstract:
A securement system for securing a wheelchair in a vehicle includes a securement area having a first end, a second end, and a support surface. A first extendable restraint is fixedly attached proximate the first end. A dispensing opening extends through the support surface proximate the second end. A second extendable restraint is fixedly attached proximate the first end and extends to and through the dispensing opening.
Abstract:
A controller, control system and method for controlling an auxiliary device comprising a wheelchair lift, ramp, or the like are provided. An exemplary embodiment of the auxiliary device controller is microprocessor-based and communicates with a vehicle's OEM controller for receiving a plurality of sensor inputs, which originate from OEM and auxiliary sensors, process the sensor inputs, and control various OEM and auxiliary systems relative to the sensor inputs to effect a number of safety interlocks. The controller may operate to coordinate various OEM and auxiliary subsystems to automate auxiliary device operation to reduce operator error.
Abstract:
A dynamic system for folding and unfolding of one ramp section of a bi-folding, flip-out wheelchair ramp relative to the orientation of a driven ramp section is provided. The ramp section coupled to the dynamic system generally moves under the force of gravity during stowage and deployment. The dynamic system is independent from the drive system of the ramp and opposes the force of gravity. One embodiment of the dynamic system includes a fixed length cable connecting the non-driven ramp section to the enclosure, a gas spring for tensioning the cable and a pulley arrangement.