121 results about "Traction control system" patented technology

Slip target adjustment based on an accelerator pedal is provided. A system can detect an amount of torque requested for a vehicle. The system can determine a friction level associated with a surface on which the vehicle traverses. The system can select a slip target modifier. The selection can be based on the amount of torque requested for the vehicle and the friction level. The system can adjust a slip target used by a traction control system of the vehicle. The adjustment can be based on the slip target modifier.

The present invention pertains to an advanced traction control system designed to enhance the performance of traction elevators. This system integrates multiple components and a novel S-curve algorithm to optimize acceleration and deceleration profiles, ensuring smooth transitions and improved ride quality. Key components include a central controller, motor room board, hall panel controllers, and a car panel controller. The system supports high-speed applications, accommodating speeds up to 1400 feet per minute. The S-curve routine is divided into acceleration, constant speed, and deceleration phases, with digital speed commands transmitted via a serial communication link to the motor drive every 10 milliseconds. This precise control reduces mechanical wear and enhances passenger comfort. The system can adapt to various speed profiles, including normal, short, inspection, and emergency power modes, ensuring optimal performance under different conditions. This invention significantly improves the efficiency, safety, and durability of traction elevator systems.

The invention relates to the technical field of vehicle control, and discloses a method and system for adjusting control parameters of a traction control system and related equipment.The method comprises the steps that current road condition information of a vehicle is obtained, and the current working condition corresponding to the vehicle is determined; all driving data of the vehicle from beginning to end under the current working condition are obtained, and the corresponding traction force control condition of the vehicle under the current working condition is determined; driving behavior parameters of a driver are obtained, and the weight of each control parameter of the traction force control system is determined; according to the current working condition, the traction force control condition and the weight, control parameters of a traction force control system are adjusted, and target control parameters are determined. The driving environment and the driving habit are considered when the control parameters of the traction control system are adjusted, so that the adjustment of the traction control system on the control parameters is more in line with the current use scene, and the efficiency of calibration matching work of the traction control system is improved.

The invention discloses a vehicle, a control method and device thereof and a controller, and relates to the technical field of vehicles. Under the condition that the vehicle runs on the road of the target type and an acceleration instruction is received, if the controller determines that the expected output torque of the power system is larger than the target torque and the torque rising gradient is larger than the gradient threshold value, the output torque of the power system can be increased according to the target gradient smaller than the torque rising gradient. Under the conditions that the output torque of the power system reaches the expected output torque and the slip rate of the wheels is larger than the slip rate threshold value, the controller can trigger the traction force control system to conduct torque control. Therefore, when the wheels slip, the stability of the vehicle can be improved by controlling the torque through the traction force control system. And before, when the vehicle predicts that the vehicle slips on the basis of the expected output torque and the torque rise gradient, the torque rise gradient can be limited in advance, so that the vehicle is prevented from slipping to a great extent, and the driving stability of the vehicle is further improved.

The invention provides a traction control unit and a control method thereof, a traction converter and a traction control system. Wherein the traction control unit comprises a data acquisition module and a physical layer, and the data acquisition module and the physical layer are integrated in a first field programmable gate array; wherein the first field programmable gate array is configured to output a driving control signal and control the data acquisition module and the physical layer based on the driving control signal; the data acquisition module is configured to acquire 320 sets of intermediate process data of the traction control unit based on the driving control signal and send the intermediate process data to the physical layer; and the physical layer is connected with the data acquisition module and is configured to transmit the received intermediate process data based on the driving control signal. The traction control unit disclosed by the invention can realize high-precision and high-frequency acquisition of intermediate process data, so that the overall performance and the operation efficiency of a system are improved.

A brake traction control system (BTCS) using a redundancy braking system includes a main braking force adjusting device configured to control a hydraulic brake of a vehicle, a sensor unit configured to detect a driving state of the vehicle, an electronic brake electrically operating and configured to generate braking force for at least one driving wheel, and an auxiliary braking force adjusting device configured to control the hydraulic brake and the electronic brake when a failure occurs in the main braking force adjusting device, wherein the auxiliary braking force adjusting device is configured to adjust the braking force of the electronic brake provided on at least one wheel on left and right sides of the vehicle based on a detected value of the sensor unit.

The invention relates to the technical field of traction force control systems, and provides a vehicle traction force control method which comprises the steps that vehicle dynamics information of a to-be-controlled vehicle is obtained, and the vehicle dynamics information is information describing the movement condition of the to-be-controlled vehicle; according to the vehicle dynamics information, a plurality of road adhesion coefficients are calculated through a plurality of adhesion coefficient calculation modes; fusing the plurality of pavement adhesion coefficients to obtain a comprehensive pavement adhesion coefficient; according to the vehicle dynamics information, multiple vehicle slip rates are calculated through multiple slip rate calculation modes; fusing the plurality of vehicle slip rates to obtain a comprehensive vehicle slip rate; and according to the comprehensive road adhesion coefficient and the comprehensive vehicle slip rate, the driving torque and the wheel braking force are calculated respectively, and the to-be-controlled vehicle is controlled based on the driving torque and the wheel braking force. According to the method, multiple influence factors are comprehensively considered through data fusion processing, and the control precision of the vehicle traction control system is improved.

A work vehicle comprises a power engine and a transmission assembly with a variator, a gear assembly, and an electric motor, which is operatively connected to supply rotational power to the variator. The transmission assembly selectively transmits power from the power engine and / or the electric motor to an output shaft for driving ground-engaging elements of the work vehicle.A traction control unit controls a speed or torque output of the electric machine to provide traction control, wherein the traction control unit operates by receiving inputs of a predicted ground engagement element speed and an actual ground engagement element speed, comparing the predicted ground engagement element speed with the actual ground engagement element speed, and if the predicted ground engagement element speed falls below the actual ground engagement element speed by more than a threshold, reducing the speed or torque output of the electric machine and thus providing traction control.

The utility model discloses a lightweight traction control system of a molten steel locomotive. The lightweight traction control system comprises a cabinet body, a traction inversion module, an auxiliary inversion module, a traction control unit, an auxiliary control unit, a water circulation cooling system and a cooling fan, the traction control system is provided with the water circulation cooling system and the cooling fan, and the heat dissipation performance of the traction control system can be improved in a water cooling heat dissipation and air cooling heat dissipation mode, so that normal use of the traction control system in a high-temperature environment is better guaranteed; in addition, modular design is adopted, position optimization design is carried out on the power modules such as the traction inversion module and the auxiliary inversion module, the size of the traction control system is reduced, a quick connector is installed and can be quickly inserted and pulled, parts can be replaced without discharging cooling liquid in a cooling loop, and the cost is reduced. Therefore, the convenient maintenance effect is achieved, and the lightweight design of the traction control system is met.

A method for controlling a traction control system, ABS and actively controlled suspension. The method includes receiving an sensor output from at least one suspension sensor at a controller. The sensor output is indicative of a vertical height of the suspension relative to a road. The method determines an amplitude of vertical motion of the suspension over time using the received sensor output. The method identifies peaks and valleys in the amplitude of vertical motion of the suspension over time. The method determines that a rough road condition is present in response to a number of peaks and valleys exceeding a predefined threshold amplitude occurring more often than a predefined threshold frequency. An active suspension control of at least one wheel system of a vehicle is adapted in response to determining that a rough road condition is present.

Systems and methods for range extension with optimal traction control for multi e-axle based electrified vehicles are disclosed. The systems and methods optimize the operation of electric vehicles with multiple e-axles by generating optimal torque profiles based on look-ahead information about road conditions and optimally distributing torque between e-axles to minimize energy losses and extend driving range. The optimal traction control system operates in three main steps: first, generating an optimal torque profile based on look-ahead information about road grade and speed limits; and second, optimally allocating the requested torque between multiple e-axles to minimize energy losses. Third, dynamic drive control for electric machine to track optimal torque with minimized current. The optimal torque profile follows the trend of the road grade, providing more torque on uphill sections and less torque or even negative torque on downhill sections.

The present invention relates to the technical field of power control. Disclosed are a counter-electromotive force suppression system and method for an electric locomotive, and an electric locomotive. The counter-electromotive force suppression system is sequentially connected to a four-quadrant rectifier, a transformer and a power grid; a permanent magnet traction motor is used for driving a locomotive to operate under a traction working condition and braking the locomotive under a braking working condition; one end of a traction inverter is connected to the four-quadrant rectifier, and the other end of the traction inverter is connected to the permanent magnet traction motor; an isolation switch is arranged between the permanent magnet traction motor and the traction inverter; a power battery system is connected to the traction inverter; a traction control system is connected to the traction inverter; an auxiliary system is connected to the traction inverter to consume electric energy generated by the permanent magnet traction motor; and the traction inverter, the power battery system and the auxiliary system share an intermediate direct current loop. The counter-electromotive force suppression system reduces the impact of counter-electromotive force on a locomotive traction converter system when an electric locomotive passes a neutral zone, thereby improving the operation stability of the electric locomotive and the service life of a contactor.

The invention discloses a control method and system for automatic pantograph descending of a train in a joint area of an insulation anchor section of a contact network, and the control method comprises the steps: arranging an image processing mechanism on the train, collecting pantograph-catenary images at different times through the image processing mechanism, and judging whether the train is stopped or not; judging whether the train pantograph is located in an insulation anchor section joint area of the line or not; when it is confirmed that the train is parked and the pantograph of the train is located in the joint area of the insulated anchor section of the line, the image processing mechanism outputs a pantograph descending signal to the train; judging whether the speed of the traction control system is 0 or not; when it is confirmed that the speed of the traction control system is zero and the train receives a pantograph descending signal, the train outputs a pantograph descending instruction; and starting to execute the pantograph descending operation. According to the method, pantograph descending control can be automatically achieved, the requirement that the pantograph descends mistakenly when a single device and a single system break down is avoided, related hazards are prevented from being generated, and it is further ensured that subway operation safety is the urgent demand of all operation units of urban rail transit.

The present invention relates to a method and device for controlling a vehicle's stability and traction control system, known as a CDS system. To this end, an indicator light (211) representing the AEB system is displayed in a specific area of ​​a human-machine interface shown in a first zone (21) of a touchscreen (13). Data representing a touch press on the displayed indicator light (211) is received. Graphic content comprising a set of information (311, 312) representing a current state of the CDS system is displayed in a second zone (31) of the touchscreen, different from the first zone (21), depending on the data received. Figure 3 (for the abstract)

The invention discloses a traction-controlled vehicle working condition identification method and system and a vehicle, which are characterized in that the wheel speed difference and the vehicle speed are judged to identify that the current vehicle is in a curve working condition, and the maximum braking force difference and the vehicle speed are judged to identify that the current vehicle is in a split working condition; according to the method, the driving gradient and the vehicle speed are judged to recognize that the vehicle is in the ramp working condition at present, and the current longitudinal friction coefficient potential, the longitudinal friction coefficient and the lateral friction coefficient are judged to recognize the friction coefficient utilization state, so that the necessary working conditions in the traction control system are recognized; when the working conditions are met, judgment is carried out in time, and it is guaranteed that a corresponding control mode is carried out subsequently.

The invention provides a method for a traction control system of a vehicle, and the method comprises the steps: judging whether the actual torque is reduced or not and whether the difference value between the actual torque and the request torque of the traction control system is within a preset range or not in a gear shifting process; and under the condition that the actual torque is reduced and the difference value is not within the preset range, the acceleration of the request torque is slowed down until a preset condition is met. The invention further provides a traction force control system and a controller.

The invention discloses a high-speed range-extending self-traction control system and method and a rail vehicle, and relates to the field of rail vehicles. The system comprises a pantograph, a high-speed circuit breaker, a traction inverter, a first energy storage power supply system, a second energy storage power supply system, a first DCDC conversion module, a second DCDC conversion module and a range extending switch arranged in a cab. The range extending switch is used for generating a range extending traction signal, the second energy storage power supply system is used for receiving the range extending traction signal sent by the train network control system and controlling the first DCDC conversion module to be started and the second DCDC conversion module to be started in a self-detection mode according to the range extending traction signal, and high-speed range extending traction of the train is achieved. Through high-speed self-traction, the vehicle can quickly run to the next station, the safety risk of main line evacuation of passengers is avoided, the rescue probability is reduced, and the operation efficiency of quick transfer of fault vehicles is improved.

A vehicle includes a traction control system. The vehicle includes a controller configured to indicate a recommended speed on a display based on precipitation deposits, temperature, and speed limits, and to activate the traction control system before the vehicle intersects the vector. The indication and activation can be in response to an expected route of the vehicle intersecting an expected precipitation deposit of a weather prediction vector received from a source external to the vehicle.

The invention discloses a distributed traction control system, a control method and a vehicle, and belongs to the technical field of vehicles. The distributed traction control system comprises a driving motor and a motor control unit, and the motor control unit is connected with the driving motor; the motor control unit is configured to obtain a rotary change signal of the driving motor and a rotating speed signal of the wheel, determine a wheel speed difference value according to the rotating speed signal, and control the driving motor to adjust the output torque according to the wheel speed difference value and the rotary change signal when the wheel slips and the wheel speed difference value is abnormal so as to realize torque control; compared with a conventional traction control system, the distributed traction control system provided by the embodiment of the invention has the advantages that the time of signal transmission and feedback processes among an electronic braking system, a gateway, a whole vehicle control system and a motor control system can be shortened, the control time and the torque response time are effectively shortened, the dynamic response of wheels is controlled to be faster, and the reliability of the system is improved. The acceleration stability of the electric vehicle is effectively improved.

This utility model relates to a novel 110V battery traction control system for improving vehicle operating speed. It includes a traction converter, a first battery pack, a second battery pack, a connecting assembly, a charging assembly, a first switching component, and a second switching component. The first switching component has a first position connecting the first battery pack to the charging assembly and a second position connecting the first battery pack to the traction converter. The second switching component has a third position connecting the second battery pack to the charging assembly and a fourth position connecting the second battery pack to the traction converter. When the first switching component is in the second position and the second switching component is in the fourth position, the connecting assembly connects the first and second battery packs in series or parallel and then connects them to the traction converter. By using the connecting assembly, the first and second battery packs can be connected differently depending on the vehicle's operating conditions. When connected in parallel, it meets the requirements for slow vehicle operation in depots / parking lots; when connected in series, it allows for approximately double the vehicle's speed.

The invention relates to the technical field of shield tunneling machine detrapping, in particular to a shield tunneling machine detrapping body traction control system and method applying omnidirectional traction force, and the method comprises the steps: predicting the current propulsion resistance of a shield tunneling machine based on a long-short-term memory network according to historical shield construction data; traction devices are arranged at the front end, the rear end, the side faces and the bottom of the shield tunneling machine through distributed hydraulic cylinders, so that the shield tunneling machine has the omni-directional traction capacity, and free traction in the X-Y-Z three-axis direction is achieved. On the basis of the predicted propelling resistance, the predicted total propelling force is calculated by applying a force balance equation, the distribution proportion of the total oil cylinder propelling force and the total traction force is reasonably determined, the stability and efficiency of the propelling process are ensured, meanwhile, the posture deviation of the shield tunneling machine is obtained in real time, the total traction force is decomposed into traction force components in the X, Y and Z axial directions, and the stability and efficiency of the shield tunneling machine are improved. The pulling force of the traction device is accurately controlled, the abnormal posture is corrected in time, and the accuracy of the escape tunneling direction is guaranteed.

A vehicle includes a system and method of modeling and controlling tractive effort of a wheel of the vehicle. The system includes an observer, a predictive controller, and an online solver. The observer receives dynamic model parameters of the wheel and determines an estimate of a wheel speed and an uncertainty of the wheel speed using a nonlinear model of the wheel. The predictive controller determines an average gain and a differential gain from the estimate of the wheel speed and the uncertainty of the wheel speed. The online solver calculates a motor torque and a wheel brake torque for increasing tractive effort of the wheel on a road based on the average gain and the differential gain. The motor torque and the wheel brake torque are applied on the vehicle.

The invention discloses a double-tuned filter, which comprises a filter module and a switch, and is characterized in that the filter module comprises a first series group which is formed by connecting a first inductor, a first resistor and a second capacitor in series; the second series group is formed by connecting a second inductor and a second resistor in series; the first series group and the second series group are connected in parallel and then are connected in series with the first end of the first capacitor; and the second end of the first capacitor is connected in series with the first end of the switch. By introducing the double-tuned filter, harmonic suppression of characteristic frequency generated by an elevator frequency conversion system during constant-speed operation of an elevator is realized, so that torque pulsation generated during constant-speed operation of an elevator permanent magnet motor is effectively suppressed, vibration and noise during operation of the elevator are reduced, and comfort of the elevator is improved. The invention further discloses an elevator permanent magnet synchronous traction control system.

Traction control using multiple actuators is provided. A system can identify a slip for a vehicle wheel based on a difference between a wheel motion and a vehicle motion. The system can determine an amount of torque to apply to the wheel to adjust the slip to satisfy the slip target. The system can distribute a first portion of the torque to apply to the wheel via a first actuator of the plurality of actuators and a second portion of the torque to apply to the wheel via a second actuator of the plurality of actuators. The system can provide commands to cause the first actuator to apply the first portion of the amount of torque and cause the second actuator to apply the second portion of the amount of torque to adjust the slip of the wheel.

The invention relates to the technical field of automobile safety control, and discloses a distributed electric automobile traction control method and system and a program product, and the method comprises the following steps: after a traction control system is activated, judging the type of a road surface where the automobile is located; judging whether the vehicle responds to the target torque reduction value sent by the traction force control system according to the type of the road surface of the vehicle; if the road surface is a non-separated road surface, responding; if the pavement type is a separated pavement, entering the next step; judging whether the vehicle has an instability trend or not; if so, entering the next step; if not, the low attachment side responds to the target torque reduction value sent by the traction force control system, and the high attachment side responds to the torque required by the driver; and determining the bearable maximum torque difference of the vehicle, and adjusting the high attachment side torque of the vehicle according to the bearable maximum torque difference of the vehicle. The problem that in the prior art, collaborative optimization of the stability and acceleration of the vehicle is difficult to achieve when the vehicle tends to be unstable is solved.

An unmanned aircraft traction control system without a traction rod and an intelligent tractor relate to the technical fields of aircraft ground motion and man-machine coordination. The traction control system includes an aircraft light identification and induction module, a main sensing system module, an aircraft sound identification and induction module and a control module which are arranged on the tractor. When the tractor and an aircraft carry out a wheel holding operation, the aircraft light identification and induction module, the main sensing system module and the aircraft sound identification and induction module acquire a brightness signal of an aircraft nose landing gear taxi light, an aircraft turning signal, an aircraft resistance signal and an aircraft horn signal autonomously transmitted by a pilot. The purpose that a pilot autonomously controls the tractor to pull an aircraft to an aircraft parking position or a designated taxiway position is realized through the above signals.

An autonomous cruise control (ACC) system that implements a corrective action strategy based on driving conditions for a vehicle is provided. The ACC system includes a drive unit, vehicle sensors and a controller. The controller: receives at least signal from at least one vehicle sensor indicative of a driving condition; determines, based on the signal, whether the at least one signal satisfies a threshold indicative of an unsafe driving condition; and performs the corrective action strategy based on the determination that at least one signal satisfies an unsafe driving condition. The corrective action strategy comprises at least one of: (i) increasing a preset distance to a target vehicle; (ii) communicating a message to a human machine interface indicative of an unsafe driving condition; (iii) communicating a signal to vehicle brakes to initiate a braking event; and (iv) communicating a signal to a traction control system to alter an acceleration setting.

The present application relates to the technical field of new energy electric drive system control, and in particular to a differential protection method and apparatus, an electric vehicle, and a storage medium. The method comprises: acquiring a rotation speed difference between rotating speed half shafts in a differential and an output torque of a driving motor; matching a torque threshold of the driving motor according to the rotation speed difference, and determining whether the rotation speed difference is within a preset protection interval and whether the output torque is greater than the torque threshold; and when the rotation speed difference is within the preset protection interval and the output torque is greater than the torque threshold, activating a differential protection function of the differential, and using the differential protection function to reduce the output torque of the driving motor to a target torque; and otherwise, not activating the differential protection function. Thus, the problems in the related art of poor driving performance of a vehicle, poor user experience, and the like caused by being unable to avoid simultaneous activation of a differential protection function of a differential and a traction control system due to limitation of the differential protection function are solved.

The invention provides an intelligent monitoring system for the slip rate of an unmanned tractor, and the system comprises a GNSS vehicle speed measurement unit which is used for collecting the ground speed of a vehicle and a system UTC time reference; the multi-node wheel rotating speed measuring unit comprises at least four wheel nodes and is used for collecting rotating speed data of each wheel; the GNSS vehicle speed measuring unit, the multi-node wheel rotating speed measuring unit and the central processing and display unit are connected through a star flash wireless network; and the central processing and display unit is configured to perform fusion processing on the received vehicle ground speed and system time reference data and the rotating speed data of each wheel, calculate the slip rate and interact with a whole tractor controller. The system can provide real-time and accurate four-wheel slip rate data for a traction control system of the unmanned tractor.

The invention relates to the technical field of automobile safety control, and discloses a traction control method and system for a vehicle water skiing state, and the traction control method for the vehicle water skiing state comprises the following steps: judging the water skiing type of a vehicle through a vehicle driving state signal and an internal signal of a vehicle traction control system; selecting features for each water skiing category from the vehicle driving state signal and the vehicle traction control system internal signal as training data, constructing a random forest model for each water skiing category, training the random forest model by using the training data, and predicting a reference vehicle speed based on the random forest model; calculating a reference axle speed according to the predicted reference vehicle speed, and calculating a target driving torque based on the reference axle speed; and calculating a reference wheel speed according to the predicted reference vehicle speed, and calculating a target braking torque based on the reference wheel speed. The problem that in the prior art, traction control is difficult to carry out accurately is solved.