12 results about "Two-wheel drive" patented technology

The invention relates to a motor-gearbox assembly (1) for an electrically driven motor vehicle, comprising at least one electric traction machine (5), at least one gearbox arrangement (7) which is operatively connected to the electric traction machine (5), and at least two wheel drive shafts (3) which are arranged coaxially with a drive axle (4) of the motor vehicle and are operatively connected to the gearbox arrangement (7). The at least one electric traction machine (5) and the at least one gearbox arrangement (7) are arranged within a housing (2) of the motor-gearbox assembly (1). Functional components and / or functional regions of the at least one electric traction machine (5) are formed by the housing (2) of the motor-gearbox assembly (1).

The invention relates to a motor-gear assembly (1) for an electrically powered motor vehicle, comprising at least one electric traction motor (5), at least one transmission unit (7) operatively connected to the electric traction motor (5), and at least two wheel drive shafts (3) arranged coaxially with a drive axle (4) of the motor vehicle and operatively connected to the transmission unit (7). The at least one electric traction motor (5) and the at least one transmission unit (7) are arranged within a housing (2) of the motor-gear assembly (1). Functional components and / or functional areas of the at least one electric traction motor (5) are formed by the housing (2) of the motor-gear assembly (1).

This invention provides a novel intelligent power disconnector comprising a power input shaft, a power output shaft, and a movably connected power connection structure. It also includes a control motor and an actuator. The actuator connects the motor shaft of the control motor to the power connection structure. By rotating the output motor, the actuator drives the power connection structure to translate, thereby controlling the connection or disconnection between the power input shaft and the power output shaft. This novel intelligent power disconnector controls the rotation of the control motor output, and the cooperating actuator converts the output rotational motion into the movement of the power connection mechanism. The movement of the power connection mechanism enables the connection between the power output shaft and the power input shaft to be switched on or off. In electric vehicles, when the four-wheel drive is running smoothly, it can be switched to two-wheel drive, with the other two wheels driven, allowing the other motor of the vehicle to operate in an energy-saving mode, effectively conserving energy.

The application relates to the technical field of wheel drive systems, and particularly provides an electric wheel drive system. The electric wheel drive system comprises a drive support seat, two support arms, two wheel drive assemblies and two steering reduction assemblies. The application can independently control the steering of the wheels through the wheel drive assemblies and the steering reduction assemblies, and the power can be reduced and the torque can be increased through the reduction gears. In addition, the output components and the floating elements in the reduction gears can improve the flow circulation of the cooling lubricating liquid while providing the reduction and torque increase, the reduction gears are prevented from overheating during the working process, and multi-stage buffering and damping are provided, the damage risk of the internal structure of the reduction gears caused by the vibration is effectively reduced, the timely cooling and lubrication of the lubricating liquid are ensured, the service life of the reduction gears and steering motors and other parts is prolonged, and the reliability and safety of the overall system are improved.

The invention relates to a motor-gearbox assembly (1) for an electrically driven motor vehicle, comprising at least one electric traction machine (5), at least one gearbox arrangement (7) which is operatively connected to the electric traction machine (5), and at least two wheel drive shafts (3) which are arranged coaxially with a drive axle (4) of the motor vehicle and are operatively connected to the gearbox arrangement (7). The at least one electric traction machine (5) and the at least one gearbox arrangement (7) are cooled and / or lubricated by means of a liquid cooling and / or lubricating medium. Separate circuits for the liquid cooling and / or lubricating medium are provided for cooling and / or lubricating the at least one electric traction machine (5) and for cooling and / or lubricating the at least one gearbox arrangement (7).

The invention relates to a motor-gearbox arrangement (1) for an electrically powered motor vehicle, comprising at least one electric traction motor (5), at least one transmission unit (7) operatively connected to the electric traction motor (5), and at least two wheel drive shafts (3) arranged coaxially with a drive axle (4) of the motor vehicle and operatively connected to the transmission unit (7). The cooling and / or lubrication of the at least one electric traction motor (5) and the at least one transmission unit (7) is effected by means of a liquid cooling and / or lubricating medium. Separate circuits for the liquid cooling and / or lubricating medium are provided for the cooling and / or lubrication of the at least one electric traction motor (5) and for the cooling and / or lubrication of the at least one transmission unit (7).

The invention relates to the technical field of mechanical transmission control, in particular to an automatic belt tensioning system and method based on vibration frequency analysis, and the system comprises an excitation device which is used for applying transient mechanical excitation to a belt so as to excite the free vibration of the belt; the non-contact sensor is used for collecting a vibration signal generated by free vibration; the control unit is connected with the excitation device and the non-contact sensor and is configured to control the excitation device and the non-contact sensor; controlling the excitation device to act; spectral analysis is conducted on the collected vibration signals to extract the vibration fundamental frequency of the belt; calculating a real-time tension value of the belt according to the vibration fundamental frequency and pre-stored belt parameters; the real-time tension value is compared with a target tension value, and when the deviation exceeds a preset dead zone threshold value, a control signal is generated based on a control algorithm; and the executing mechanism is connected with the control unit and is used for adjusting the center distance between two wheels for driving the belt according to the control signal so as to adjust the tension of the belt. And stable power output of a press transmission system is guaranteed.

The application discloses a door type crane micro-motion adjusting method and belongs to the technical field of hoisting engineering, and comprises the following steps: a, X direction, a moving platform is arranged on a trolley frame, a moving device is arranged at the bottom of the moving platform, square steel rails for the moving device to slide are arranged on the upper portion of the trolley frame, the square steel rails are arranged along the direction of a cart walking mechanism, and a horizontal pushing hydraulic cylinder is arranged between the moving platform and the trolley frame; b, Y direction, two wheels driven by motors are arranged on the cart walking mechanism, and two micro-motion walking wheels are further arranged, the micro-motion walking wheels are driven by servo motors; and c, Z direction, a balance pulley is arranged on the moving platform, the balance pulley is driven by a vertical pushing cylinder, and the vertical pushing cylinder drives the balance pulley to move upwards or downwards. The application can realize high-precision micro-motion control in X, Y and Z directions and meet the requirement of accurate positioning.

The invention provides a shifting fork control method and device and a vehicle. The current position of a shifting fork is detected in real time; a first shifting fork instruction is responded and executed, the first shifting fork instruction indicates that a shifting fork is switched to a first target position corresponding to a first driving mode, and the first driving mode is a two-wheel driving mode or a four-wheel driving mode; if a second shifting fork instruction is received in the execution process of the first shifting fork instruction, whether execution of the first shifting fork instruction is completed or not is determined according to the current position, the second shifting fork instruction indicates that a shifting fork is switched to a second target position corresponding to a second driving mode, and the second driving mode is a four-wheel driving mode or a two-wheel driving mode; the second driving mode is different from the first driving mode; after it is determined that the first shifting fork instruction is executed, the second shifting fork instruction is responded and executed, the shifting fork driving success probability can be increased, the internal execution risk of a front main speed reducer system is reduced, and the user experience is remarkably improved.

This application provides a cable trench adsorption-type inspection trolley, including a main support base plate with a downward-opening adsorption chamber at its bottom; a flexible sealing membrane covering the edge of the adsorption chamber; a circuit control main board stacked on top of the main support base plate, with an air gap between the circuit control main board and the main support base plate; a negative pressure adsorption module communicating with the adsorption chamber; a driving mechanism including two symmetrically arranged drive units, each drive unit including a drive motor and two wheels driven by the drive motor; a monitoring system including a temperature measurement system for detecting environmental parameters and an encoder for feeding back the speed of the drive motor; and a wireless transmission communication module mounted on the circuit control main board. This invention, through wireless interactive design, achieves visualized monitoring of the inspection process, offering advantages such as convenient operation, transparent status, and high safety.

The invention relates to an electric drive (1) for a motor vehicle with two electric motors (2, 3), each having a rotor shaft (4, 5) and being connected to two wheel drive shafts (8, 9) for vehicle wheels (10, 11) via a differential gear (6) and at least one reduction gear (7) in a torque-transmitting manner, wherein the differential gear (6) has a differential basket which is prepared to be locked by a parking lock mechanism, wherein the differential gear (6) is integrated in the torque flow from the electric motors (2, 3) to a first vehicle wheel (10) and a second vehicle wheel (11) upstream of at least one reduction gear (7).

The invention discloses an energy cycle control method and system for a double-independent-drive new energy automobile. A drive system comprises a front wheel drive system and a rear wheel drive system, a battery comprises a corresponding special battery, and a control system comprises a traveling main computer system and the like. And the traveling main computer system receives the vehicle speed and electric quantity data, controls the two-wheel driving system to alternately operate and synchronously charges the corresponding power recovery system, and controls the two-wheel driving system to simultaneously operate and close the recovery system when a tire slips. According to the scheme, the high-speed endurance endless loop of the pure electric new energy vehicle is solved, the high-speed endurance can be improved without a large battery, the vehicle weight is reduced, and the charging time is shortened.