9results about How to "Avoid undermotivation" patented technology

The invention discloses a composite power switching type tramcar which comprises a track, a cruise car is arranged on the track, the cruise car is rotationally connected with a main driving rotating rod extending out of the cruise car, traveling wheels are fixed to the two ends of the main driving rotating rod, and the track comprises a straight track, a turning track and a climbing track. The cruise vehicle is provided with a power driving structure for driving a cruise vehicle main driving rotating rod to rotate, the power driving structure drives the cruise vehicle to run on a straight track, the turning power switching structure is installed in the cruise vehicle and drives the cruise vehicle to run on a turning track, and the turning power switching structure is matched with the power driving structure; a climbing power switching structure for driving the cruising vehicle to run on the climbing track is further mounted in the cruising vehicle, and the climbing power switching structure is matched with the power driving structure; a turning power switching structure and a climbing power switching structure are introduced, and the risks of collision, slipping and rail deviation are reduced by providing stable turning and climbing functions.

The invention belongs to the technical field of multi-leaf collimators, and particularly relates to a multi-leaf collimator blade driving method and a driving structure. The driving structure comprises a constant-torque fixed-rotating-speed motor, a plurality of transmission subsystems and a plurality of blades; the plurality of transmission subsystems are in one-to-one correspondence with the plurality of blades of the collimator; a single constant-torque fixed-rotating-speed motor is used as a power source, power is transmitted to collimator blades through transmission subsystems in one-to-one correspondence with a plurality of blades of the collimator, and the collimator blades are driven to complete linear motion; the power input ends of the transmission subsystems are connected in parallel. The driving blades only need a single high-power motor and are greatly different from a traditional multi-blade collimator, and the number of the blades of the traditional multi-blade collimator is the same as that of the motors for driving the blades. According to the driving structure, the moment of motion of the blades can be increased in a larger range, the motion speed is higher, the requirement for the size of the motor is greatly lowered, the requirement for the performance of the motor is lowered, and a large power change range is not needed.

The application provides a load change-based demand torque control method, system and vehicle, and the method is as follows: (1) when the vehicle is in a stationary state, the actual load mass of the vehicle is read, and the load rate lambda corresponding to the current actual load mass is calculated; (2) the demand torque MAP under the current load rate lambda is extracted, and after the vehicle is in a running state, the demand torque MAP under the current load rate is used to determine the demand torque of the vehicle. When the change of the load rate is detected, the demand torque MAP is adaptively adjusted, so that the excessive acceleration or power deficiency caused by the change of the load is avoided, the energy utilization is optimized, and the power response more in line with the expectation of the driver is provided, especially when the change of the load is large (such as after sudden unloading).

The invention discloses an anti-slip control method, device and equipment for a hybrid bulldozer and a storage medium. Comprising the steps that the slip rate of a vehicle is calculated based on collected multi-source data, the continuous slip time is recorded, and the accelerator opening degree is detected; based on the slip rate, the continuous slip time and the accelerator opening degree, whether a preset slip triggering condition is met or not is judged; when the preset slip triggering condition is met, a preset dynamic torque correction table is inquired, a torque correction coefficient is obtained, and the torque correction coefficient defined in the dynamic torque correction table changes in a multi-section mode and comprises a stable adjusting stage and a rapid adjusting stage. And calculating the corrected output torque of the driving motor based on the torque correction coefficient. According to the scheme, the motor torque is dynamically adjusted by monitoring the vehicle slip state in real time and combining the dynamic torque correction strategy, the slip rate is controlled within a reasonable range, and the system response speed and the energy utilization efficiency are improved.

The invention discloses a composite power-switching rail-hung tram, comprising a track, a cruise vehicle is arranged on the track, the cruise vehicle is rotatably connected with a main driving rotating rod extending outside the cruise vehicle, traveling wheels are fixed at both ends of the main driving rotating rod, the track comprises a straight track, a curved track and a climbing track, a power driving structure is arranged for driving the main driving rotating rod of the cruise vehicle to rotate, the power driving structure drives the cruise vehicle to travel on the straight track, and further comprises: a curved power switching structure installed in the cruise vehicle for driving the cruise vehicle to travel on the curved track, the curved power switching structure cooperates with the power driving structure; a climbing power switching structure is also installed in the cruise vehicle for driving the cruise vehicle to travel on the climbing track, the climbing power switching structure cooperates with the power driving structure; the curved power switching structure and the climbing power switching structure are introduced, and the risks of collision, slipping and deviation from the track are reduced by providing stable curved and climbing functions.

The invention discloses a vehicle operation electric quantity adjusting method and device and a vehicle. Vehicle energy can be flexibly distributed according to a vehicle operation scene. The vehicle operation electric quantity adjusting method comprises the steps that according to a historical reciprocating working condition road spectrum of a vehicle, a road is extracted as continuous multi-section scene feature values; wherein the scene characteristic value comprises an uphill stage and a downhill stage; when the scene characteristic value is in the uphill stage, the torque value of the vehicle in the uphill stage is adjusted according to the uphill mileage and the charge state change rate of the uphill stage; and when the scene characteristic value is in the downhill stage, the torque recovery amount of the vehicle in the downhill stage is adjusted according to the downhill mileage and the charge state change rate in the downhill stage.

The embodiment of the invention discloses a hybrid vehicle clutch self-learning method and device and a medium, belongs to the technical field of vehicle control, and solves the problem that when a clutch is offline, a one-time learning mode easily causes engine starting overshoot or insufficient power in the environment with large temperature difference. Comprising the steps that when a vehicle is powered on, a clutch sliding friction point self-learning state is entered; in the clutch combining process, the motor rotating speed is detected in real time, and when the motor rotating speed reaches the preset motor rotating speed condition, the current clutch combining position serves as the clutch sliding friction point position; verifying the position of the sliding friction point of the clutch, and determining that the position of the sliding friction point of the clutch is successfully learned under the condition that the verification is passed; when the vehicle is powered off, entering a clutch minimum combination point self-learning state, and taking a corresponding clutch position after the vehicle is powered off as a clutch minimum combination point position; and verifying the position of the minimum combination point of the clutch, and determining that the learning of the position of the minimum combination point of the clutch is successful when the verification is passed.

The application discloses a shift decision method, a controller and a vehicle of a hybrid vehicle, and relates to the field of vehicle control.The method comprises the following steps: obtaining current vehicle driving parameters and predicted vehicle speeds after shifting of each target gear; outputting a basic target gear based on the current speed and the current accelerator pedal opening degree by using a preset two-parameter calibration algorithm; determining the maximum output wheel end torque of each target gear based on the current driving mode, the predicted vehicle speed after shifting and transmission parameters; calculating the minimum wheel end demand torque after shifting in combination with the current driving parameters; determining the target gear with a positive value of the difference between the maximum output wheel end torque and the minimum demand torque as an effective gear and determining the highest limit gear; and outputting a shift execution gear based on the comparison result of the basic target gear and the highest limit gear.The application dynamically determines the torque output boundary, avoids power deficiency, eliminates the cycle of upshift and downshift, and improves the driving smoothness of the vehicle.

The utility model relates to the technical field of desulfurization systems, in particular to an in-furnace desulfurization relay conveying system, which can ensure the conveying power, improve the conveying efficiency and avoid the problem of back spraying, and comprises a limestone powder main storage bin and a front-furnace limestone powder relay bin, fluidization devices are installed on the limestone powder main storage bin and the stokehole limestone powder relay bin, an outlet of the limestone powder main storage bin is connected with a bin pump, the bin pump is connected with a feeding port of the stokehole limestone powder relay bin through a conveying thick-wall pipe, the conveying thick-wall pipe and the bin pump are both connected with a front compressed air storage tank, and the front compressed air storage tank is connected with the stokehole limestone powder relay bin. An outlet of the stokehole limestone powder relay bin is connected with a spiral quantitative feeding scale, the spiral quantitative feeding scale is connected with a stokehole feeding distributor through an air locking feeder and an injection pump, the stokehole feeding distributor is connected with a hearth, and the injection pump is connected with a rear compressed air storage tank.