8results about How to "Eliminate frustration" patented technology

The application discloses a low-speed steering control method based on differential braking and torque compensation. The application collects vehicle state signals such as vehicle speed and steering wheel rotation angle in real time, accurately determines the low-speed large-angle steering working condition of the vehicle, determines the inner side rear wheel in the curve according to the steering wheel rotation angle, matches the vehicle speed and the rotation angle, dynamically applies a small amount of braking pressure to form a differential steering torque, and dynamically compensates the braking pressure matched with the outer side driving motor to form a differential steering torque. The application can effectively offset the dragging feeling caused by the braking of the inner side rear wheel, avoid the wheel lock and slip problem, guarantee the smooth process of the low-speed large-angle steering of the vehicle, optimize the low-speed steering performance of the vehicle, and improve the driving comfort and the driving stability.

The present invention discloses a baby carriage swing mechanism and a baby carriage using the swing mechanism, and relates to a baby carriage, and aims to solve the problem that the baby carriage does not have a swing function. The main points of the technical solution are: a baby carriage swing mechanism, comprising a swing motor and a swing shaft, wherein the swing shaft comprises an outer shaft and an inner shaft plugged into the outer shaft, wherein the swing motor drives the outer shaft to rotate, and eccentric motion components are respectively arranged at both ends of the outer shaft, wherein the eccentric motion components comprise an eccentric wheel fixed to the outer shaft, and a connecting seat rotatably sleeved on the eccentric wheel, wherein the connecting seat is installed on the baby carriage; the outer shaft is respectively extended at both ends of the inner shaft, and a driving wheel is rotatably sleeved, and the driving wheel is transmission-connected with a driving motor. A baby carriage swing mechanism of the present invention adopts a structure combining an eccentric wheel and a connecting seat to give the baby carriage a swing function.

This invention discloses a modular, environmentally friendly metal-enclosed switchgear, specifically relating to the field of power distribution switchgear technology. It includes: a mounting box, a cabinet, a first track, a second track, a slide rail, and a floating mechanism. The cabinet comprises a rectangular shell composed of multiple plates. An elastic reset structure is provided on the inner side of the rectangular shell. The rectangular shell deforms under the pressure of the mounting box, allowing the elastic reset structure to provide elastic support for the rectangular shell in the horizontal plane, thereby compensating for the assembly tolerance between the mounting box and the slot. This invention, by providing slide rails on both sides of the mounting box, which cooperate with the first and second tracks on the inner side of the cabinet, constitutes a stable dual-track guiding system. This significantly reduces the resistance during the insertion and removal of the mounting box, achieving nearly interference-free smooth sliding, thereby greatly reducing wear on the guide surface and contact surface, and extending the overall service life of the drawer module and the cabinet.

The invention discloses a fuel supply system, method and equipment of an engine and a medium. The fuel supply system comprises a first fuel supply pipeline and a second fuel supply pipeline, a second delivery pump for pumping a second fuel; the adding device is provided with a second channel communicated with the output end of the second conveying pump and the first fuel supply pipeline, and the flow area of the second channel is adjustable; the control module is electrically connected with the second conveying pump and the adding device and used for determining the target adding amount of the second fuel based on the engine operation working condition; determining target traffic based on the target additive amount; and based on the target flow, the flow area of the second channel or the pumping pressure of the second conveying pump is controlled, so that the second fuel is conveyed to the first fuel supply pipeline at the target flow until the adding amount of the second fuel in the first fuel supply pipeline reaches the target adding amount. By the adoption of the system, diesel-free cold start is achieved, the complexity and cost of the system are reduced, the pause feeling in the fuel conversion process is eliminated, the combustion stability of an engine is improved, and the service life of the engine is prolonged.

In order to solve the problems that according to an engine crankshaft assembly assembling and press-fitting method in the prior art, shaking or jerking may occur in the press-fitting process, position or size deviation may occur to a crankshaft assembly, the press-fitting quality of the crankshaft assembly is difficult to guarantee and the like, the utility model provides an engine crankshaft assembly assembling and press-fitting die frame which comprises a die frame body, the device comprises a bottom plate, a die column, a sliding plate, a connecting column, a connecting plate, a lower crank positioning mechanism, a connecting rod positioning seat, an upper crank positioning mechanism and an upper crank fixing mechanism, the lower crank positioning mechanism and the upper crank positioning mechanism are the same in structure and opposite in orientation, and each crank positioning mechanism comprises a base, a positioning seat, a guide shaft, a spring and an anti-falling bolt; the connecting rod positioning seat is a cuboid, and a connecting rod positioning column is arranged on the surface of the cuboid connecting rod positioning seat; the upper crank fixing mechanism comprises a supporting plate and a fixing rod. The crankshaft assembly press-fitting device has the advantages that shaking or pause possibly generated in the press-fitting process is eliminated, and position or size deviation possibly occurring in a crankshaft assembly is eliminated.

This invention relates to the field of vehicle control for new energy vehicles, specifically to a braking energy recovery resistor device and control method for new energy vehicles under high SOC conditions. The device includes a vehicle control unit (VCU), a battery management system (BMS), a multi-function device, a high-voltage wiring harness, a drive motor, a braking resistor control unit, a braking resistor module, a temperature sensor, a cooling module, and a high-voltage contactor. The BMS and the multi-function device are communicatively connected to the VCU. The braking resistor control unit is also communicatively connected to the VCU. The multi-function device is connected to the power battery, drive motor, braking resistor module, and high-voltage wiring harness. The control terminals of the multi-function device and the braking resistor control unit are connected, enabling real-time information exchange and intelligent control. This invention aims to achieve uninterrupted electric braking under high SOC conditions, stable bus voltage, battery overcharge protection, long-term reliable resistor operation, and improved braking smoothness and safety.

The application discloses a kind of proportion valve hydraulic synchronous loop tonal elimination method and device, it is related to steel pushing type heating furnace control technical field, with two kinds of functions of keeping the position synchronization of two hydraulic cylinders and eliminating tonal simultaneously.Method includes: obtaining the current speed corresponding to two hydraulic cylinders at current time respectively, with preset target speed, determine first adjustment amount, first adjustment amount is added to two proportional valves simultaneously, to keep the current speed corresponding to two hydraulic cylinders at current time respectively all be preset target speed, eliminate tonal, do not affect the position synchronization adjustment of two hydraulic cylinders, according to the current hydraulic cylinder position corresponding to two hydraulic cylinders at current time respectively, calculate second adjustment amount, second adjustment amount is added to one proportional valve, to keep the position synchronization of two hydraulic cylinders, according to first adjustment amount and second adjustment amount adjustment one proportional valve, simultaneously, according to first adjustment amount adjustment another proportional valve, to eliminate tonal and keep the position synchronization of two hydraulic cylinders.

The application discloses a metro pulse passenger flow-oriented escalator control method, equipment and medium, the method comprises the following steps: according to metro train operation data, construct the pulse passenger flow trigger sequence based on discrete events, calculate the continuous passenger flow injection curve arriving at the entrance of the escalator;The future dynamic load torque of the escalator is predicted by using PINN network;In combination with the predicted dynamic load torque, the minimum system operation energy consumption, mechanical wear and queuing congestion penalty are taken as the comprehensive target, the multi-objective nonlinear model predictive control optimization problem is constructed and solved, the optimal speed control instruction is generated and issued to the escalator frequency converter for execution.The application can accurately reconstruct the real-time quality distribution on the escalator, and calculate the future dynamic load torque accordingly, and the controller adjusts the motor operation accordingly, so that it always works at the optimal slip frequency point, reduces the energy consumption of the escalator, reduces the wear of parts, prolongs the service life.