7results about How to "Improved stability control" patented technology

The vehicle driving system and the vehicle are used for solving the technical problems that a four-wheel independent driving system is low in working condition efficiency, large in left and right torque consistency control difficulty and high in cost. The vehicle driving system comprises a driving motor, a first planetary gear train and a second planetary gear train which are of the same structure and can transmit torque output by the driving motor to a left half shaft and a right half shaft respectively, and a first clutch and a second clutch which are connected between the driving motor and the first planetary gear train and between the driving motor and the second planetary gear train respectively. The differential mechanism comprises a differential gear, two elements with the same steering trend in the first planetary gear train and the second planetary gear train are meshed with the differential gear, the central axes of the two elements are collinear, and the differential gear is meshed with the differential gear. The drive axle housing is connected with the differential gear and is perpendicular to the central axis of the differential gear, and the brake is connected between the differential gear and the drive axle housing.

The invention provides a control circuit of a digital intelligent electric actuator, which comprises a power supply and external connection wire board circuit, an electric actuator main control circuit, a motor driving filter circuit, a data encryption storage circuit, an encoder signal input circuit, an infrared signal receiving circuit, a 485 communication circuit and a key input circuit which are in power supply connection, the output end of the electric actuator main control circuit is connected with the external connection wire board circuit, the motor drive filter circuit and the data encryption storage circuit, and the output end of the motor drive filter circuit can be connected with a motor of the electric actuator. The input end of the electric actuator main control circuit is connected with the analog signal communication circuit, the encoder signal input circuit, the infrared signal receiving circuit, the 485 communication circuit and the key input circuit. The electric actuator has the beneficial effects that high-precision and high-stability control of the electric actuator can be achieved, and error deviation caused by rotation inertia of a controlled valve is reduced.

The vehicle driving system and the vehicle are used for solving the technical problems that a four-wheel independent driving system is low in working condition efficiency, large in left and right torque consistency control difficulty and high in cost. The vehicle driving system comprises a driving motor, a first planetary gear train, a second planetary gear train, a first clutch connected between the driving motor and the first planetary gear train, a second clutch connected between the driving motor and the second planetary gear train, and the first clutch and the second clutch at least have a semi-clutch state and a complete joint state. The differential mechanism comprises a first differential gear and a second differential gear which are meshed with each other, and two elements with the same steering trend in the first planetary gear train and the second planetary gear train are meshed with the first differential gear and the second differential gear respectively; and the transmission shaft is connected between one of the first differential gear and the second differential gear and the drive axle housing.

The vehicle driving system and the vehicle are used for solving the technical problems that a four-wheel independent driving system is low in working condition efficiency, large in left and right torque consistency control difficulty and high in cost. The vehicle driving system comprises a driving motor, a first planetary gear train and a second planetary gear train, the first planetary gear train and the second planetary gear train are of the same structure and can transmit torque output by the driving motor to a left half shaft and a right half shaft respectively, and two elements, with the same steering trend, in the first planetary gear train and the second planetary gear train are meshed with each other. One of the first planetary gear train and the second planetary gear train is connected with the drive axle housing through a brake, the first clutch is connected between the drive motor and the first planetary gear train, the second clutch is connected between the drive motor and the second planetary gear train, and the first clutch and the second clutch at least have a semi-clutch state and a complete joint state. The torque transmitted to the left half shaft by the driving motor through the first planetary gear train is adjusted, and the torque transmitted to the right half shaft by the driving motor through the second planetary gear train is adjusted.

The present application relates to the field of gas flow standard device, especially to active horizontal disc-shaped piston gas flow standard device and testing method.The technical scheme is as follows: the active horizontal disc-shaped piston gas flow standard device includes driving module, guide module, metering module and control system module, the driving module includes servo motor, coupling and ball screw, the servo motor is connected with the ball screw through the coupling, the ball screw is provided with screw nut, and the screw nut is connected with the piston disc support rod.Through the structural design of horizontal disc-shaped piston and balance cavity, the gas pressure difference on both sides of the piston is offset, the load of the driving unit is reduced, the operation efficiency and service life of the device under high pressure working condition are improved, the sealing reliability of the sealing assembly is enhanced, gas leakage is prevented, the sealing state is diagnosed in real time and safety protection is provided when abnormal, and the long-term stability of gas flow output, the safety of device operation and the accuracy of measurement results are ensured.

The application provides a stability control method, a vehicle and a storage medium. The method is applied to the field of vehicles and includes the following steps: acquiring an actual yaw rate of the vehicle and a longitudinal slip rate of each wheel; calculating a target longitudinal braking force of a corresponding wheel according to the longitudinal slip rate of each wheel and the actual yaw rate of the vehicle; and controlling a braking mechanism of each wheel to output the target longitudinal braking force. The method can control each wheel to output a more accurate longitudinal braking force, thereby keeping the vehicle body stable by independently controlling each wheel to output an accurate longitudinal braking force, effectively improving the effect of stability control, and keeping the vehicle body stable more quickly.

The vehicle driving system and the vehicle are used for solving the technical problems that a four-wheel independent driving system is low in working condition efficiency, large in left and right torque consistency control difficulty and high in cost. The vehicle driving system comprises a driving motor, a first speed reducing mechanism and a second speed reducing mechanism which have the same speed reducing ratio and can transmit torque output by the driving motor to a left half shaft and a right half shaft respectively, and a first clutch and a second clutch which are connected between the driving motor and the first speed reducing mechanism and between the driving motor and the second speed reducing mechanism respectively. The first speed reducing mechanism is arranged on the left half shaft and the right half shaft and at least has a complete separation state and a semi-clutch state, at most one of the first clutch and the second clutch is in the semi-clutch state, and the third speed reducing mechanism has a speed reducing ratio different from that of the first speed reducing mechanism and can transmit torque output by the driving motor to the left half shaft and the right half shaft. The differential mechanism is connected to the output end of the third speed reducing mechanism, and the third speed reducing mechanism transmits torque to the left half shaft and the right half shaft through the differential mechanism.