6results about How to "Reduce output torque" patented technology

The present invention addresses the problem of suppressing an excessive decrease in the output torque of an engine during execution of an inter-cylinder correction process. A drive control device is applied to a vehicle provided with a spark ignition engine having a plurality of cylinders. A first processing circuit of the drive control device executes inter-cylinder correction processing for correcting fluctuations in the magnitude of engine torque at the ignition timing of a plurality of cylinders and adjusting the amount of fuel supplied to the cylinders or the ignition timing for each of the plurality of cylinders. Lower limit protection is set for the amount of fuel supplied to the cylinder or the correction amount of ignition timing when the inter-cylinder correction process is executed.

This utility model relates to a lifting device with dynamic gravity compensation, including a support frame, a transmission lifting device, a sliding frame sliding on the support frame, a fixed pulley group set on the top of the support frame, a tension spring for relieving pressure on the lifting device, a movable pulley group set on the tension spring, and a steel rope for pulling the sliding frame. The lifting device is set inside the support frame; the working end of the lifting device is connected to the sliding frame; a connecting piece is set on the side wall of the support frame; one end of the tension spring is set on the connecting piece; the other end of the tension spring is set on the movable pulley group; the fixed pulley group includes several sets of first pulley bodies; the movable pulley group includes several sets of second pulley bodies; the steel rope is wound around the first pulley bodies and the second pulley bodies in sequence. This invention solves the problem that the transmission structure of traditional lifting devices is relatively simple, often using a single steel wire rope or chain to directly connect the motor and the lifting platform, which cannot effectively amplify the stroke of the steel wire rope.

The invention relates to a motion domain cooperative stability control method and device after tire burst of a vehicle and a medium, and the method comprises the steps: monitoring the air pressure data of each tire of the vehicle in real time, and generating a tire burst signal when tire burst is detected; the vehicle motion control system formulates a cooperative control strategy according to the tire burst signal and vehicle state data collected by an inertial measurement unit; according to the cooperative control strategy, control instructions are synchronously sent to a braking system, a power system, a rear wheel steering system and a semi-active suspension system, and the rear wheel steering system controls rear wheels to deflect in the specific direction so as to generate corrected yawing moment in the direction opposite to that of yawing moment caused by tire burst; the braking system applies braking force to the obliquely opposite side wheel of the tire burst wheel so as to assist in generating reverse yawing moment, the power system reduces output torque, and the semi-active suspension system adjusts rigidity and damping parameters of the tire burst side suspension and the diagonal side suspension. Multi-system coordinated response can be achieved at the moment of tire burst, and the running track is kept stable.

The application relates to the electric drive technology field of new energy vehicles, in particular to a differential protection method and device, an electric vehicle and a storage medium, wherein the method comprises the following steps: acquiring the output torque of a driving motor in the electric vehicle; if the output torque is in a preset torque interval, activating the differential protection function of the differential and / or the gravity control system of the electric vehicle, wherein the execution priorities of the gravity control system and the differential protection function are different; reducing the output torque of the driving motor by using the differential protection function and / or the gravity control system, so as to reduce the speed difference between the half shafts in the differential, until the speed difference is less than a first preset value. Thus, the problem that the differential is prone to failure and the vehicle is prone to failure due to long-time wear and tear of the differential exceeding the design boundary in the prior art is solved, the service life of the electric vehicle is reduced, and the user experience is poor.

This invention provides a two-dimensional electro-hydraulic servo valve based on a wet-dry separation transmission mechanism, comprising a valve body connected to a motor via a mechanical transmission mechanism; the valve body includes a valve core, a valve sleeve, and a valve body; the mechanical transmission mechanism includes a housing disposed between the valve body and the motor, within which are a wet operating chamber and a dry operating chamber, the wet operating chamber being connected to the internal oil passage of the valve body; the dry operating chamber is located on one side of the wet operating chamber, and the motor rotor extends into the dry operating chamber; the mechanical transmission mechanism also includes a transmission assembly, comprising a first-stage torque amplification mechanism and a second-stage torque amplification mechanism connected together. This invention addresses the problems of high-pressure dynamic seal friction loss and short lifespan in existing two-dimensional electro-hydraulic servo valve structures by incorporating a wet operating chamber; simultaneously, the dry operating chamber ensures that the hydraulic oil does not directly contact the motor; the transmission assembly amplifies the motor's output torque, overcoming various resistances encountered by the valve body during operation.

The application provides a wind turbine load control method, device, computer readable medium and equipment, relates to the wind power generation technical field, and the method comprises the following steps: acquiring the environment wind speed and wind direction of the current time in real time; in the case of determining that the wind speed and wind direction meet the preset wind condition, the wind speed and wind direction are matched with the preset wind speed threshold value and the preset wind direction threshold value respectively; if the wind speed is greater than the wind speed threshold value and the wind direction is greater than the wind direction threshold value, the output torque of the wind turbine is controlled to be the target torque, and the target torque is lower than the preset output torque of the wind turbine. The application can acquire the environment wind speed and wind direction of the wind turbine in real time, and when it is determined that the current wind speed and wind direction meet the preset wind condition, and the wind speed and wind direction are greater than the preset wind speed threshold value and the wind direction threshold value respectively, the output torque of the wind turbine is controlled to be reduced, so that the load of the wind turbine is reduced, the loss of the wind turbine components under extreme wind conditions is reduced, and the service life of the wind turbine components is prolonged.