CURTIS INSTRUMENTS, INC.
|CURTIS INSTRUMENTS, INC. Patent applications|
|Patent application number||Title||Published|
|20130304287||Vehicle Component Recognition And Adjustment For Energy Efficiency - An apparatus including a plurality of electric vehicle movement components, where a first one of the components is configurable to operate in one of a plurality of power operational modes; and a connection connecting the plurality of electric vehicle components to each other. The first component is configured to select one of the operational modes based, at least partially, upon information through the connection regarding an identification of a second different one of the components and/or an operational capability of the second component.||11-14-2013|
|20130300430||ISOLATION MONITOR - An isolation monitor is disclosed in which a switchable bias voltage is imposed on a chassis ground. An isolation voltage is measured when a bias voltage is applied. When there are no electrical faults, the isolation voltage swings up and down to known values. When a fault occurs, the isolation voltage will not to swing to the known values, and thus the isolation resistance can be measured and alarm generated if the isolation resistance falls below a threshold value.||11-14-2013|
|20130257149||MOTOR CONTROLLER WITH INTEGRATED SAFETY FUNCTION TO ELIMINATE REQUIREMENT FOR EXTERNAL CONTACTOR - Circuits, systems, and methods are disclosed to eliminate the requirement for an external electromechanical contactor. Integrating contactor circuits with a motor controller reduces cost. Additionally, the cost of the contactor circuit may be reduced by providing transistors designed to block current in only one direction in the event of an electrical fault corresponding to an electrical drive direction.||10-03-2013|
|20130018524||Single Handed Attendant Control for a Wheelchair - Disclosed herein is a personal mobility vehicle controller. The personal mobility vehicle controller includes a housing having a first input member, a second input member, and a third input member. The first input member is configured to change a mode or profile of a personal mobility vehicle. The second input member is configured to provide a security function for the third input member. The third input member is configured to operate a feature based on the mode or profile. The housing is adapted to be held in a single hand of a user. The personal mobility vehicle controller is configured to operate the personal mobility vehicle with the single hand from a location proximate the personal mobility vehicle.||01-17-2013|
|20120316884||Wheelchair System Having Voice Activated Menu Navigation And Auditory Feedback - A personal mobility vehicle, such as a wheelchair system, includes an input audio transducer having an output coupled to a speech recognition system and an output audio transducer having an input coupled to a speech synthesis system. The wheelchair system further includes a control unit having a data processor and a memory. The data processor is coupled to the speech recognition system and to the speech synthesis system and is operable in response to a recognized utterance made by a user to present the user with a menu containing wheelchair system functions. The data processor is further configured in response to at least one further recognized utterance made by the user to select from the menu at least one wheelchair system function, to activate the selected function and to provide audible feedback to the user via the speech synthesis system.||12-13-2012|
|20120310470||WHEELCHAIR SYSTEM HAVING A SHORT RANGE WIRELESS INTERFACE TO AN INTERMEDIARY DEVICE FOR RELAYING DIAGNOSTIC-RELATED AND OPERATIONAL PROGRAM INFORMATION TO AND FROM A REMOTE SITE - A personal mobility vehicle, such as a wheelchair system, includes a short range wireless interface and a control unit having a data processor and a memory. The data processor is coupled to the wireless interface and is configured to wirelessly transmit vehicle diagnostic-related data from the memory to an intermediary device via the short range wireless interface for subsequent transmission from the intermediary device to a remote site. The data processor is further configured to wirelessly receive via the short range wireless interface with the intermediary device at least operational program related data from the remote site.||12-06-2012|
|20100007299||SYSTEMS AND METHODS FOR DYNAMICALLY COMPENSATING MOTOR RESISTANCE IN ELECTRIC MOTORS - Electric motor controllers that dynamically adjust a motor resistance parameter are described. In order to adjust the motor resistance parameter, power is applied the electric motor while the controlled vehicle is stopped and its brake is set so that the vehicle remains stopped while a measurement is taken that can be used to determine motor resistance. A new motor resistance value is then generated based at least in part upon the measurement(s) and the motor resistance parameter is set to the new motor resistance value. The new motor resistance parameter may then be used in the control of the electric motor. In some embodiments, the measurements are taken after the controller receives a brake release request but before actually releasing the brake. The described arrangement can be used in a wide variety of motor controllers and is especially well suited for use in low cost controllers that control motors that are susceptible to wide variations in their resistance such as brushed permanent magnet DC motors.||01-14-2010|
Patent applications by CURTIS INSTRUMENTS, INC.