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289 results about "Traction control system" patented technology
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A traction control system (TCS), also known as ASR (from German: Antriebsschlupfregelung, lit. 'drive slippage regulation'), is typically (but not necessarily) a secondary function of the electronic stability control (ESC) on production motor vehicles, designed to prevent loss of traction of driven road wheels. TCS is activated when throttle input and engine torque are mismatched to road surface conditions.
Vehicle systems control for improving stability
InactiveUS20080183353A1Improve vehicle stabilityDigital data processing detailsAnimal undercarriagesControl systemTraction control system
Improved methods of controlling the stability of a vehicle are provided via the cooperative operation of vehicle stability control systems such as an Active Yaw Control system, Antilock Braking System, and Traction Control System. These methods use recognition of road surface information including the road friction coefficient (mu), wheel slippage, and yaw deviations. The methods then modify the settings of the active damping system and / or the distribution of drive torque, as necessary, to increase / reduce damping in the suspension and shift torque application at the wheels, thus preventing a significant shift of load in the vehicle and / or improving vehicle drivability and comfort. The adjustments of the active damping system or torque distribution temporarily override any characteristics that were pre-selected by the driver.
Owner:HONDA MOTOR CO LTD
Pneumatic automobile tire with integrated sensors and traction control system
InactiveUS6339956B1Complicates of longitudinal forceReduce brake pressureForce measurement using piezo-electric devicesTyre beadsTire beadTraction control system
A pneumatic vehicle tire includes a carcass, a bead with a bead core arranged in the bead, and a first sensor located within the bead. The first sensor delivers signals which are correlated to frictional forces transmitted by the pneumatic vehicle tire during operation. This sensor has a first end and a second end, wherein the first end includes a heel attached to the bead core and the second end extends radially outward from the bead core within the tire. A plurality of such sensors can be included in each tire, some for measuring longitudinal forces in a circumferential direction of the tire and others for measuring lateral forces in an axial direction of the tire.
Owner:CONTINENTAL AG
System and method for locomotive adhesion control
ActiveUS20070001629A1Single-phase induction motor startersDC motor speed/torque controlTraction control systemControl circuit
A traction control system for controlling an electric traction motor drivingly coupled to a wheel of a tractive vehicle. The traction control system includes means for determining speed of the wheel, means for determining tractive effort of the wheel and a control circuitry for controlling drive signals to the motor based upon the wheel speed and tractive effort.
Owner:WESTINGHOUSE AIR BRAKE TECH CORP
Vehicle systems control for improving stability
InactiveUS8229642B2Improve vehicle stabilityDigital data processing detailsAnimal undercarriagesTraction control systemControl system
Improved methods of controlling the stability of a vehicle are provided via the cooperative operation of vehicle stability control systems such as an Active Yaw Control system, Antilock Braking System, and Traction Control System. These methods use recognition of road surface information including the road friction coefficient (mu), wheel slippage, and yaw deviations. The methods then modify the settings of the active damping system and / or the distribution of drive torque, as necessary, to increase / reduce damping in the suspension and shift torque application at the wheels, thus preventing a significant shift of load in the vehicle and / or improving vehicle drivability and comfort. The adjustments of the active damping system or torque distribution temporarily override any characteristics that were pre-selected by the driver.
Owner:HONDA MOTOR CO LTD
Electric motors
ActiveUS20100138127A1Increase inductanceEasy to controlSingle motor speed/torque controlMagnetic circuitControl systemTraction control system
An electric motor includes one or more separate coil sets arranged to produce a magnetic field of the motor. The electric motor also includes a plurality of control devices coupled to respective sub-sets of coils for current control. A similar arrangement is proposed for a generator. A coil mounting system for an electric motor or generator includes one or more coil teeth for windably receiving a coil for the motor and a back portion for attachably receiving a plurality of the coil teeth. A traction control system and method for a vehicle having a plurality of wheels independently powered by a respective motor. A suspension control system and method for a vehicle having a plurality of wheels, each wheel being mounted on a suspension arm of the vehicle and being independently powered by a respective motor.
Owner:PROTEAN ELECTRIC LIMITED
Traction control system and method
ActiveUS8442735B2Improve vehicle performanceArrangements for variable traffic instructionsAnalogue computers for trafficTraction control systemEngineering
Owner:FORD GLOBAL TECH LLC
Automatic power-passing phase-splitting apparatus of AC drive electric locomotive
The invention discloses an automatic passage method through phase splitting for an AC-DC-AC electric locomotive which comprises the following steps: before the electric locomotive runs into a neutral section, a traction control system controls a traction motor to work in a regenerative braking mode and controls an inverter to stabilize intermediate DC voltage; a pulse rectifier works in an inversion state; an alternating voltage equal to a traction voltage is generated on the primary side of a traction transformer, thereby making the primary side of the traction transformer obtain zero current from a power supply arm; after the electric locomotive runs into the neutral section, the intermediate DC voltage still maintains stability; the AC phase generated by the inversion of the pulse rectifier in the inversion mode changes gradually so as to make the voltage of the primary side of the traction transformer change to become equal to the traction voltage of a next power supply arm; and then the electric locomotive enters the next power supply arm and runs normally. The method enables the automatic passage through phase splitting; in addition during the phase splitting, a main circuit breaker does not need to be turned on and off without arc discharge, interception overvoltage and closing surge overcurrent, and an auxiliary system is not deenergized; and the passage through phase splitting has short time, low traction loss and small speed drop.
Owner:SOUTHWEST JIAOTONG UNIV
Traction control system and method for a vehicle
ActiveUS20060080023A1Navigate conditionImprove vehicle performanceElectrical controlDigital data processing detailsTraction control systemAutomotive engineering
In one example, a system for a vehicle is shown. The system includes a traction control system configured to adjust powertrain output to reduce wheel slip and a powertrain controller configured to control powertrain output based on actuation of a pedal of the vehicle by the driver, where a relationship between powertrain output and pedal actuation is adjusted in response to at least one of road grade and direction of wheel spin.
Owner:FORD GLOBAL TECH LLC
Traction control system and method for a vehicle
ActiveUS20060080022A1Navigate conditionHigh resolution powertrain torque output controlElectrical controlDigital data processing detailsDriver/operatorTraction control system
In one example, A method for controlling a powertrain of a vehicle with wheels, the vehicle having a pedal actuated by a driver, is described. The method may include generating powertrain torque transmitted to the wheels in a first relation to actuation of the pedal by the driver during a first condition where said transmitted torque causes said wheels to slip relative to a surface; overriding said driver actuated powertrain torque to control said slip; and during a second condition after said first condition where said vehicle is moving less than a threshold, generating powertrain torque transmitted to the wheels in a second relation to actuation of the pedal by the driver, where for a given pedal position, less powertrain torque is transmitted with said second relation compared to said first relation.
Owner:FORD GLOBAL TECH LLC
Layered control method of hybrid electric vehicle traction
The invention relates to a layered control method of hybrid electric vehicle traction, comprising the following steps of: (1) arranging an upper expected-drive total-moment calculating layer, a middle dynamic coordination control layer and a bottom escape mechanism layer; (2) according to driver operation input, obtaining an expected engine torque and an expected motor torque; (3) inputting the expected engine torque, the expected motor torque, the wheel speed of a driving wheel and an objective slippage rate into the upper expected-drive total-moment calculating layer to calculate the expected drive total moment of a whole vehicle driving system; (4) inputting an actual drive total moment, the expected drive total moment of the whole vehicle driving system and the expected motor torque into the middle dynamic coordination control layer to calculate the objective torques of an engine and a motor; and (5) inputting the objective torques of the engine and the motor, the expected engine and motor torques and all the driving wheel slippage rate into the bottom escape mechanism layer to establish an exit strategy of the dynamic-compensation hybrid electric vehicle traction layered control system and calculate engine torque commands and motor torque commands. The invention can be widely applied to a traction control system of various hybrid electric vehicles.
Owner:TSINGHUA UNIV
Traction control system for stationary reconnection locomotive
ActiveCN1632702APromote expansionRealize data transmissionComputer controlElectric digital data processingElectricityControl system
This invention relates to a fixed connecting engine driving control system composed of two engines. Each engine has the same controlling system composed of central control unit, driving control unit, logic control unit, display unit, operation safety monitoring unit and electrical braking logic unit. It is characterized by the following: each engine control system adopts local network bus to make the data communication between module plates in each unit.
Owner:WUHAN ZHENGYUAN ELECTRIC
Device for measuring action force of wheel and device for measuring stress of structure
InactiveUS6032520AEasy to measureShorter braking distanceAxially engaging brakesEngine testingSignal processing circuitsTraction control system
Action force of a wheel is measured in order to measure the road surface frictional force, vertical drag, road surface friction coefficient, etc. Means for making these measurements can be constituents of an antilock brake system, traction control system, etc. These constituents may also serve as devices for measuring stresses generated in other structures. In a specific example, axle of a vehicle is formed with a hole, a stress detection sensor is installed in the hole and secured in position with the aid of a spacer element, and a detection signal from the stress detection sensor is processed in a signal processing circuit.
Owner:JAPAN ELECTRONICS IND LTD
Differential Steering and Traction Control For Electrically Propelled Mower
InactiveUS20070295545A1Digital data processing detailsSteering initiationsSteering wheelElectronic controller
A differential steering and traction control system for an electrically propelled mower. Each of the front wheels has an electric motor wheel drive, and each rear wheel may have an electric steering motor. The operator's station has a steering wheel and a speed control. An electronic controller provides steering commands to the electric steering motor and separate speed commands to each electric motor wheel drive based on the angle of the rear wheel and the position of the speed control.
Owner:DEERE & CO
Track traffic train traction brake system and method
ActiveCN105398438AImproved brake control performanceAvoid data transmission delay problemsBraking action transmissionElectricityControl system
The invention discloses a track traffic train traction brake system and method. The system comprises a central control system, a brake executing device and a traction control system, wherein the brake executing device and the traction control system are respectively connected to the central control system; the central control system comprises a brake control module which is used for controlling the execution of electropneumatic hybrid brake; the central control system receives a traction command and a brake command of trains from a train communications network, and starts the traction control system to control and execute the traction operation according to the received commands, or the brake control module is used for controlling the brake executing device and the traction control system to execute the electropneumatic hybrid brake. According to the method, the system is used for executing traction and brake. The track traffic train traction brake system disclosed by the invention has the advantages of being simple in structure, low in required cost, capable of executing brake control in real time, and high in electropneumatic hybrid precision and efficiency.
Owner:ZHUZHOU CSR TIMES ELECTRIC CO LTD
Motor-assisted integrated automobile brake system
ActiveCN102795219ASimple structureReduce volumeBraking action transmissionMotor driveMaster cylinder
The invention discloses a motor-assisted integrated automobile brake system. The motor-assisted integrated automobile brake system comprises a pedal input unit, a power unit, a hydraulic unit, a brake master cylinder, and a liquid storage chamber, wherein the pedal input unit is connected with the power unit; the power unit is connected with the brake master cylinder; the brake master cylinder is respectively connected with the liquid storage chamber and the hydraulic unit; an electric control unit is electrically connected with the pedal input unit, the power unit and the hydraulic unit respectively; and the hydraulic unit is connected with each brake cylinder. According to the invention, a direct current motor drives a ball screw to push the brake master cylinder through a rubber reaction disc to generate assisting power, thereby realizing three braking modes of driver braking, motor braking, and coordinated braking of driver and motor. When the motor fails, the driver can also realize large braking intensity by executing braking independently so as to ensure safe and reliable braking. The motor-assisted integrated automobile brake system disclosed by the invention has the advantages of small size of the overall brake system, light weight and low cost, can integrate a plurality of functions of ABS (anti-lock brake system), TCS (traction control system), ESP (electronic stability program) and the like, and can effectively reduce the braking distance.
Owner:ZHEJIANG ASIA PACIFIC MECHANICAL & ELECTRONICS
Electric Motors
ActiveUS20130049498A1Increase inductanceEasy to controlSingle motor speed/torque controlRailway vehiclesPower flowControl system
Owner:PROTEAN ELECTRIC LIMITED
Hybrid electric vehicle speed estimating method
The invention discloses a hybrid electric vehicle speed estimating method which solves the problem in the existing vehicle speed estimating method that application limitation is caused by an acceleration sensor and estimation is incorrect due to wheel slipping when an anti-brake system (ABS), an electronic stability program (ESP) and a traction control system (TCS) work. The hybrid electric vehicle speed estimating method includes the following steps of 1 signal reading which includes reading wheel signals of a left front wheel, a right front wheel, a left rear wheel and a right rear wheel of a hybrid electric vehicle; 2 converting of the wheel signals into corresponding vehicle speed signals; 3 vehicle speed estimating algorithm selection which includes determining a vehicle speed estimating algorithm according to four wheel speed error state variables, a motor rotation speed error state variable, a TCS work state variable, an ABS work state variable and an ESP work state variable; 4 giving of the vehicle speed as zero when four wheel speed is detected abnormal and rotation speed signals of a driving motor or an engine are abnormal; 5 calculating of vehicle speed output.
Owner:上海诺昂汽车技术有限公司
Train-set traction control system
InactiveCN104765337AEasy to controlQuick controlSpeed controllerAC motor controlFour quadrantsMulti unit
Owner:CRRC QINGDAO SIFANG ROLLING STOCK RES INST
Aircraft ground travel traction control system and method
ActiveUS20150253773A1Driven effectively and reliablyMove the aircraft efficientlyMechanical power/torque controlEnergy efficient operational measuresAutomatic controlDrive wheel
A traction control system and method are provided for an aircraft equipped with a ground travel drive system with drive wheels powered by onboard wheel drive means that are capable of translating torque through the aircraft drive wheels and that are automatically controllable to control traction without reliance on the aircraft's brakes to keep the aircraft moving efficiently and autonomously on the ground under a range of environmental conditions.
Owner:BOREALIS TECH LTD
System and method for locomotive adhesion control
ActiveUS7285926B2Single-phase induction motor startersAC motor controlTraction control systemEngineering
Owner:WESTINGHOUSE AIR BRAKE TECH CORP
Traction control system of vehicles combining feedback control with feedforward control
InactiveUS6584399B2Hand manipulated computer devicesDigital data processing detailsDrive wheelControl system
A traction control system of a vehicle having a device for calculating a target traction torque of each of a pair of driving wheels based upon operating conditions of the vehicle, a device for calculating a target slip ratio of each of the pair of driving wheels based upon the target traction torque calculated therefor, and a device for controlling the engine and the brake system such that actual slip ratio of each of the pair of driving wheels coincides with the target slip ratio calculated therefor according to a feedback control, with a partial feedforward control of the engine and the brake system based upon the target traction torque.
Owner:TOYOTA JIDOSHA KK
Dual data rate traction control system for a four wheel drive electric vehicle
A traction control system is provided that is applicable to both two wheel drive and four wheel drive electric vehicles, and which is capable of handling both low frequency and high frequency control duties. The system uses proportional gains in order to minimize controller delays and insure a natural feeling traction control system.
Owner:ATIEVA USA INC
Electric vehicle traction control system and method
A traction control system and method are provided for electric vehicles with at least one drive wheel powered by an electric drive motor to maintain optimum maximum traction while the vehicle is driven on the ground. The traction control system includes drive means capable of transmitting torque through a vehicle drive wheel and controllable to move the vehicle over a ground surface. A preferred drive means is an electric motor designed to move the vehicle at desired ground speeds in response to operator input. Operator input requests a desired speed, and the system determines drive wheel torque required to produce the desired speed and provides maximum current to produce maximum torque to drive the vehicle with optimum traction at the desired speed. The system uses constant feedback to find maximum current corresponding to torque required for an inputted speed request to automatically control traction in any electric powered vehicle.
Owner:BOREALIS TECH LTD
Magnetic levitation operation control system
ActiveCN109693690AGuaranteed operating efficiencyEliminate Signal InteractionRailway traffic control systemsSequence controlControl system
The invention provides a magnetic levitation operation control system. The system comprises a central operation control system, a safety control center and a vehicle-mounted control system. The central operation control system completes operation planning, real-time scheduling, route presetting and turnout control of a maglev train, generates operation parameters and transmits the operation parameters to the safety control center; the safety control center is responsible for full-line access protection, full-line traction cut off, full line turnout protection, full line driving sequence control, full line train protection, the full line automatic driving, the full line speed curve monitoring and the full line positioning functions, and distributes operation data to a traction control system, a traction cut off unit, a turnout protection unit and the vehicle-mounted control system of full line all operation partitions. The centralized and unified safety control center is adopted to replace an original independent partition operation control system of each operation partition, signals of all the operation partitions are collected to the safety control center, signal interactions between adjacent operation partitions are eliminated, signal transmission faults are reduced, and the operation efficiency of the train is guaranteed.
Owner:北京中控风行磁浮科技有限公司
System and method for controlling torque of hybrid vehicle
InactiveUS20160107634A1Hybrid vehiclesDigital data processing detailsElectric machineTraction control system
A system for controlling torque controls torque during traction control of a hybrid vehicle which uses a motor and an engine as power sources. The system for controlling torque may include: a traction control system (TCS) that detects wheel slip of a front wheel or a rear wheel when the hybrid vehicle is accelerated and requests an intervention torque; a battery sensor that measures state of charge (SOC) in real time; and a vehicle controller that determines a set value of a limit torque according to the SOC transmitted from the battery sensor when requesting the intervention torque and decreases a motor torque according to the set value of the limit torque when the SOC is lower than a predetermined threshold, and then increases an engine torque by as much as the motor torque is decreased.
Owner:HYUNDAI MOTOR CO LTD +1
Traction Control System in a Vehicle, Vehicle Including Traction Control System, and Traction Control Method
ActiveUS20120022761A1Easily terminatedEasy to changeDigital data processing detailsAutomatic initiationsDrive wheelControl system
A traction control system in vehicle comprises a detector for detecting a monitored value which changes according to a degree of a drive wheel slip; a condition determiner for determining whether or not the monitored value meets a control start condition and whether or not the monitored value meets a control termination condition; and a controller for executing traction control to reduce a driving power of the drive wheel during a period of time from when the condition determiner determines that the monitored value meets the control start condition until the condition determiner determines that the monitored value meets the control termination condition; the condition determiner being configured to set at least the control start condition variably based on a slip determination factor which changes according to a vehicle state and such that the control start condition changes more greatly according to the vehicle state than the control termination condition.
Owner:KAWASAKI MOTORS LTD
Device for remotely controlling a materials handling vehicle
InactiveUS20150057843A1Registering/indicating working of vehiclesDigital data processing detailsTraction control systemRemote control
A remote control device worn by an operator in combination with a materials handling vehicle includes a wireless transmitter and control structure in communication with the wireless transmitter. The control structure is actuated by the operator to cause the wireless transmitter to generate a travel request signal. The vehicle includes a traction control system, a receiver for receiving travel request signals from the wireless transmitter, at least one sensor, and a controller. The sensor(s) is configured to detect objects near the vehicle or to detect a person on a vehicle operating platform. The controller is configured to decide not to cause the traction control system to advance the vehicle in response to a travel request signal from the receiver if the status from one or more of the at least one sensor is indicative of the presence of either: an object near the vehicle; or a person on the platform.
Owner:CROWN EQUIP CORP
Traction control system and process for a machine having a work implement
ActiveUS9555706B1Reduce componentsLimit slippingMechanical machines/dredgersTractorsTraction control systemControl theory
A traction control system configured to limit slip by a machine having a work implement including a machine motion sensor configured to determine a motion of the machine, a work implement unit configured to determine whether the work implement is in an operational state, a powertrain motion sensor configured to determine a motion of a powertrain component, and a machine powertrain controller configured to determine slip by comparing the motion of the machine to the motion of the powertrain component, wherein the machine powertrain controller is configured to command a torque reduction to the powertrain component when slip is determined.
Owner:CATERPILLAR INC
Relay type passageway lift
InactiveCN100572249CRun volume increaseIsolated contactBuilding liftsControl systemTraction control system
The invention relates to a relay-type corridor elevator. Each section of the corridor is used as a unit, and independently operated elevators are respectively installed. The elevators are installed on the side of the corridor. The frame is provided with an upper rail, a lower rail, a rail car, a traction device, a closing device and a control system: the rail car is equipped with folding handrails and folding pedals above and below; the traction device drives the rail car to run; the closing device There is an upper slot and a lower slot, an upper door hole and a lower door hole, and the upper door hole and the lower door hole are connected with the lower slot; the control system controls the operation and stop of the traction device, and controls the retraction and retraction of the folding handrail and the folding pedal . Since each section of the corridor has an elevator that can operate independently, the running volume is greatly increased. A closed device is used to install all or part of the elevator in the wall on the side of the corridor, so that it does not occupy or occupy less corridor space and area.
Owner:竺圣刚 +1
Automatic traction control for friction drives
ActiveUS20160347408A1Prevent slippingMinimizing tire wearElectrical apparatusCycle equipmentsTraction control systemControl system
The disclosure relates to improved friction drive systems, control algorithms for friction drive systems, and automatic traction control for friction drive systems. Embodiments of friction drive systems and methods may improve control over an amount of normal force between a contact surface on a friction drive (e.g., disposed on a drive motor) and a tire or wheel of a wheeled vehicle. Embodiments of friction drive systems and methods may dynamically adjust the normal force between the contact surface and the tire or wheel in response to rapidly changing conditions, such as weather, road surface, and / or tire inflation. Embodiments of an automatic traction control system may adjust the normal force to avoid slippage while minimizing tire wear and maximizing battery efficiency. Embodiments of friction drive systems and methods may allow a user to calibrate or adjust the amount of normal force delivered based on their preferences or based on a selected mode of operation.
Owner:SHAREROLLER LLC
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