6 results about "Electronic differential" patented technology

The utility model provides a kind of electronic differential coaxial three-section electric drive axle.The electronic differential coaxial three-section electric drive axle includes electric drive axle shell and the two groups of drive components symmetrically arranged therein, the drive component includes electric drive axle shell and the two groups of drive components symmetrically arranged therein, the drive component includes sequentially connected input unit, intermediate unit and output unit, the input unit includes multiple motors, converges to the same input shaft, and connects multiple intermediate units, multiple intermediate units converge to the same output unit, the intermediate unit is equipped with gear shifting mechanism and synchronously switches.The electronic differential coaxial three-section electric drive axle provided by the utility model solves the problem that the existing electric drive axle cannot meet the specific working condition use requirements.

This invention relates to the field of electronic differential pressure gauges, and provides an electronic differential pressure gauge with local calibration and zeroing functions. The gauge includes a body and a base box. The body includes a differential pressure display screen, a differential pressure sensor, a high-pressure interface, a low-pressure interface, a valve one, a valve two, and a microcontroller unit. The high-pressure interface is located at the positive pressure input end of the differential pressure sensor, and the low-pressure interface is located at the negative pressure input end of the differential pressure sensor. The high-pressure interface is connected to an external high-pressure interface via a pipeline. The low-pressure interface is connected to a calibration interface and an external low-pressure connection port via a pipeline. The external high-pressure interface and the external low-pressure connection port are used to connect to the environment under test. Both the calibration interface and the external low-pressure connection port are connected to the negative pressure input end of the differential pressure sensor via valve two. Valve one is connected between the pipelines of the positive and negative pressure input ends of the differential pressure sensor. This invention solves the problems of traditional differential pressure gauges requiring manual disassembly of pipelines, reliance on external equipment, or inability to be quickly operated on-site during calibration and zeroing.

This invention provides a control method for an electronic differential limiting device that can temporarily increase the maximum torque. Even when the maximum torque of the electronic differential limiting device is applied and the wheel slip increases to a certain level or its rate of increase is relatively fast, by temporarily increasing the maximum torque upward to the design margin, the maximum wheel speed difference can be reduced and the time required for the wheel speed difference to converge can be reduced.

This invention relates to the field of electric construction machinery drive control technology, specifically a multi-motor drive torque coordination control method for electric shovels; it includes data acquisition, model building, parameter mapping, and torque adjustment processes; the system constructs a virtual viscoelastic shaft model based on the Ackermann principle; its core is to map real-time steering angle, load, and speed difference into virtual stiffness and damping coefficients, calculate the coupling compensation torque, and superimpose it onto the base torque; this invention breaks the traditional opposition between electronic differential and anti-slip control, and achieves flexible connection between the left and right motors through the characteristics of the virtual shaft, effectively suppressing slippage without cutting off power, and taking into account both steering flexibility and driving stability under complex working conditions.

Symmetrical electronic differential electric drive axle, including two electric drive modules, with the output end of electric drive module half shaft and assembly in half shaft end wheel end planetary row, it is characterized in that: the electric drive module with half shaft coaxial alignment, two electric drive modules between two half shafts mirror image symmetry arrangement, electric drive module includes multiple motors, the power coupling of multiple motors coupling component and with the coaxial connection of coupling component reduction assembly, half shaft and the output end of reduction assembly are connected, coupling component is parallel axis structure, and reduction assembly is planetary reduction structure.The utility model quality distribution is even, improves the carrying capacity, promotes structural stability and security, fuses the efficient transmission of parallel axis and the compact split torsion characteristics of planetary wheel, shortens transmission chain, optimizes power distribution path, improves the power distribution accuracy between wheels under complex road conditions, improves the road condition adaptability of vehicle.

This invention provides a vehicle steering electronic differential control method, relating to the field of vehicle driving technology. The method includes: constructing a virtual center axle arm structure at the midpoint of the vehicle frame in the left-right direction, and establishing an electronic differential model of the vehicle based on the vehicle and the center axle arm structure; acquiring the vehicle's steering mode, the target speed of the wheels driven by the center axle arm structure in this steering mode, and the current steering angle of the steering wheels in this steering mode; calculating the average projected steering radius of the steering wheels in the vehicle based on the electronic differential model, the steering mode, and the current steering angle; calculating the desired speed of each wheel in the vehicle based on the electronic differential model, the steering mode, the target speed, and the average projected steering radius, and using the desired speed as the control speed of the corresponding wheel. This control method can improve the speed matching between the wheels during vehicle steering, thereby improving the stability and power of vehicle operation.