| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 318008000 | Plural, diverse or diversely controlled driving motors (e.g., driving differential gearing) | 19 |
| 20080197791 | Control device for vehicular drive system - A control device for a vehicular drive system controls an engine rotation speed (N | 08-21-2008 |
| 20080211432 | All Wheel Drive Vehicle - The present invention relates to the field of electric-motor-driven vehicles such as cars, motorcycles, scooters, electric-motor trains, etc. Embodiments of the invention seek to provide an economic all-wheel-drive (AWD) vehicle possessing high dynamic characteristics and a relatively simple scheme of control over the operation of electric motors. An AWD vehicle according to the disclosed invention contains at least two gearless (direct-drive) electric motors, an electric power supply source, and an electric motor power supply control unit. At least one of said motors is a start-up (barring) motor and at least one is a cruise (propulsion) motor. Each of said motors comprises (i) at least one circular magnetic conductor on which an even number of permanent magnets are uniformly arranged with a certain pitch; (ii) a circular frame separated from said magnetic conductor by an air gap and bearing an even number of electromagnets arranged in pairs one opposite to another; and (iii) a device switching the polarity of voltage applied to said electromagnets. Each pair of electromagnets situated one opposite to another corresponds to a certain phase of the electric motor, the number (m | 09-04-2008 |
| 20090115349 | METHOD AND CONTROL ARCHITECTURE TO DETERMINE MOTOR TORQUE SPLIT IN FIXED GEAR OPERATION FOR A HYBRID POWERTRAIN SYSTEM - An electro-mechanical transmission is operative to transmit mechanical torque originating from an engine and first and second electric machines to an output member. The electric machines are electrically-operatively connected to an energy storage system for electrical power flow therebetween. A Method for operating the electro-mechanical transmission includes operating the electro-mechanical transmission in a fixed gear operating range state, determining a minimum power flow between the energy storage system and the first and second electric machines to meet an operator torque request based upon electrical power constraints and motor torque constraints, commanding a motor torque from the first electric machine based upon the minimum power flow, and commanding a motor torque from the second electric machine based upon the minimum power flow, a torque input from the engine and the commanded motor torque from the first electric machine to meet the operator torque request in the fixed gear operating range state. | 05-07-2009 |
| 20090115350 | METHOD FOR DETERMINING AN ACHIEVABLE TORQUE OPERATING REGION FOR A TRANSMISSION - A method for controlling a transmission operative to transfer power between an input member and torque machines and an output member includes determining available power, motor torque constraints, and other constraints on torque transfer. Equations are provided, transformed to a second coordinate system and simultaneously solved. An achievable torque operating region is determined. | 05-07-2009 |
| 20090115351 | METHOD FOR MANAGING ELECTRIC POWER IN A POWERTRAIN SYSTEM - A powertrain system includes a transmission operative to transfer power between a plurality of power actuators and an output member, and an energy storage device. A method for controlling the powertrain system includes establishing a first set of electric power limits and a second set of electric power limits for the energy storage device, determining a preferred input power from a first power actuator based upon the first set of electric power limits, determining a first set of power constraints for constraining input power from the first power actuator and a second set of power constraints for constraining output power from the output member based upon a second set of electric power limits, and controlling operation of the powertrain system based upon the preferred input power, the first set of power constraints, and the second set of power constraints. | 05-07-2009 |
| 20090115352 | METHOD AND APPARATUS FOR CONSTRAINING OUTPUT TORQUE IN A HYBRID POWERTRAIN SYSTEM - A powertrain system includes a transmission operative to transfer power between an engine coupled to an input member and a plurality of torque machines and an output member, A method for controlling the powertrain system includes monitoring system operation and determining an output torque request, determining a closed loop speed error, determining motor torque offsets to the torque machines based upon the closed loop speed error, determining output torque constraints based upon the motor torque offsets and the system operation, determining an output torque command based upon the output torque request and the output torque constraints, determining preferred motor torque commands for the torque machines based upon the output torque command, reducing the preferred motor torque commands for the torque machines using the motor torque offsets to the torque machines, and adjusting the reduced preferred motor torque commands for the torque machines based upon the closed loop speed error. | 05-07-2009 |
| 20090115353 | METHOD OF DETERMINING OUTPUT TORQUE LIMITS OF A HYBRID TRANSMISSION OPERATING IN A FIXED GEAR OPERATING RANGE STATE - A hybrid transmission is operative to transfer power between an input member and first and second torque machines and an output member in a fixed gear operating range state. The first and second torque machines are connected to an energy storage device. A method for controlling the hybrid transmission includes determining an output torque command at the output member, determining motor torque constraints for the first and second torque machines and determining power constraints for the energy storage device, iteratively selecting candidate input torques transferable to the input member and associated output torques, determining a second torque constraint associated with the candidate input torque, determining a third torque constraint associated with the candidate input torque, and determining a preferred input torque comprising the candidate input torque that achieves the commanded output torque at the output member and satisfies the motor torque constraints for the first and second torque machines, satisfies the power constraints for the energy storage device, and satisfies the second and third torque constraints associated with the candidate input torque when operating in the fixed gear operating range state. | 05-07-2009 |
| 20090115354 | METHOD FOR ELECTRIC POWER BOOSTING IN A POWERTRAIN SYSTEM - A powertrain system is operative to transfer power between an input member and a plurality of power actuators and an output member to generate an output torque. The power actuators are connected to an energy storage device. A method for controlling the powertrain system includes monitoring operating conditions of the powertrain system, determining an electric power limit for output power of the energy storage device, selectively enabling electric power boost based upon the operating conditions of the powertrain system, and increasing the electric power limit when electric power boost is enabled. | 05-07-2009 |
| 20100039052 | ACTUATOR SYSTEM WITH A MULTI-MOTOR ASSEMBLY FOR EXTENDING AND FLEXING A JOINT - An actuator system for extending and flexing a joint, including a multi-motor assembly for providing a rotational output, a rotary-to-linear mechanism for converting the rotational output from the multi-motor assembly into an extension and flexion of the joint, and a controller for operating the actuator system in several operational modes. The multi-motor assembly preferably combines power from two different sources, such that the multi-motor assembly can supply larger forces at slower speeds (“Low Gear”) and smaller forces at higher speeds (“High Gear”). The actuator has been specifically designed for extending and flexing a joint (such as an ankle, a knee, an elbow, or a shoulder) of a human. The actuator system may, however, be used to move any suitable object through any suitable movement (linear, rotational, or otherwise). | 02-18-2010 |
| 20100176754 | ELECTRIC DRIVE UNIT FOR A WATER-BEARING DOMESTIC APPLIANCE - An electric drive unit for a water-bearing domestic appliance having a converter to provide a supply voltage from a multiphase voltage system; a control device to control the converter in order to operate a first electric motor connected to the multiphase voltage system; a load-current-carrying DC link arranged upstream of the converter; and an electrical device connected to at least part of the multiphase voltage system or the load-current-carrying DC link via a connection device, wherein the electrical device has a second electric to operate a hydraulic pump and/or a blower and/or a valve. | 07-15-2010 |
| 20100219777 | CONTROL OF HEAVY MACHINES - The present invention relates to a system for controlling rotational speed on a rotating process machine (P), which for example is a turbine or a propeller, where the rotating process machine (P) is connected to at least one motor (M | 09-02-2010 |
| 20110018471 | Method for Regulating the Angular Velocity of Printing Cylinders - A method for regulating a first printing unit is provided. The first printing unit includes a plate cylinder, a first blanket cylinder carrying a tubular blanket and an impression cylinder. The first blanket cylinder defines a region of contact with the plate cylinder. The impression cylinder defines a region of counter-pressure with the first blanket cylinder. The method includes when the first printing unit is printing, a regulating step of a duration greater than or equal to six minutes in respect of the angular printing velocity ω | 01-27-2011 |
| 20120019172 | SYSTEM, ARCHITECTURE, AND METHOD FOR MINIMIZING POWER CONSUMPTION AND INCREASING PERFORMANCE IN ELECTRIC VEHICLES - An electric vehicle accomplishes speed changes through the use of electronically controlled, multiple electric motor configurations that are coupled to an output drive shaft instead of a speed change transmission. A parallel-coupled motor configuration includes at least two motors that are each coupled to the output drive shaft through respective gear arrangements, each gear arrangement having a respective gear ratio. In a serially-coupled motor configuration, the stator of the second motor is coupled to the rotor of the first motor, where the rotor of the second motor is coupled to the output drive shaft. The required torque to reach or maintain a desired vehicle speed can be obtained by selective energization of either one or both of the motors (in both multi-motor configurations). Two motors are also coupled to a differential gear so that the rotational speed contributed by both motors are additive at the output shaft. | 01-26-2012 |
| 20120038294 | Energy-Efficient Actuator System - What is described is an actuator system ( | 02-16-2012 |
| 20130249444 | HIGH INTEGRITY ROTARY ACTUATOR AND METHOD OF OPERATION - An actuator for an aircraft is provided. The actuator comprises a first motor, a second motor and an actuator output, which are interconnected by a gear assembly. The actuator output is driveable by the first motor independently of the second motor; the actuator output is driveable by the second motor independently of the first motor; and the actuator output is driveable by the first and second motors in combination. | 09-26-2013 |
| 20140354192 | DRIVING APPARATUS FOR ANALYZING APPARATUS - Disclosed is an analyzing apparatus including a first drive part ( | 12-04-2014 |
| 20140354193 | DRIVING APPARATUS FOR ANALYZING APPARATUS - Disclosed is an analyzing apparatus including a first drive part ( | 12-04-2014 |
| 20150084551 | MOTOR DRIVING CIRCUIT, MOTOR DEVICE, AND ELECTRIC VEHICLE - A motor driving circuit has a supply line connected to a DC power source, an inverter whose input side is connected to the supply line and whose output side is connected to a motor, a power switch inserted in the supply line for switching the supply line between conducting and cut-off states, a voltage detector for detecting a voltage between the direct-current power source and the power switch, and an insulation resistance detector for first detecting, based on a result of detection by the voltage detector with the power switch in the cut-off state, an insulation resistance on the preceding-stage side of the power switch and subsequently detecting, based on a result of detection by the voltage detector with the power switch in the conducting state, an insulation resistance on the succeeding-stage side of the power switch. | 03-26-2015 |
| 20160181965 | MOTOR DRIVING CIRCUIT, MOTOR DEVICE, AND ELECTRIC VEHICLE | 06-23-2016 |
