30results about How to "Reasonable energy distribution" patented technology

The invention discloses a hybrid bus online self-learning energy management method which comprises the following steps of firstly controlling the torque allocation of an engine and a motor according to the initial energy management strategy set when delivery; and along with the running of a bus on a fixed route, obtaining an operating value function corresponding to the initial strategy, starting from the operating value function, and automatically learning an energy management strategy applicable to a bus running road condition online by virtue of the reciprocating running of the bus on a road. By fully utilizing the characteristic that a hybrid bus runs on the same route in a reciprocating manner, a self-learning method is adopted to obtain the energy management strategy applicable to the bus running road condition. The method has the characteristics of reasonable energy allocation, high fuel economy, less exhaust emission, good robustness, energy conservation and environmental friendliness.

The invention discloses a hybrid bus energy management method, which comprises the following steps of: acquiring a speed transition probability model according to historical data of a bus on the same line, current speed information and bus position information by a bus control unit, then estimating the speed, and optimizing energy distribution of the hybrid bus in a prediction zone according to the estimated speed to acquire current optimal power distribution ratio of a fuel oil engine to a motor; and finally determining the actual oil injection quantity and the power provided by the motor, and sending message to a motor control unit and an engine control unit through a controller area network (CAN) bus. Energy management of the hybrid bus is optimized by fully using the characteristics of the bus on the same line; and the method has the characteristics of reasonable energy distribution, high economical efficiency of fuel oil, low exhaust emission, high robustness, energy conservation and environment friendliness.

The invention provides a vehicle range extender control method and system and a vehicle, and relates to the technical field of vehicles. The vehicle range extender control method of the invention comprises the following steps: obtaining engine speed omega; calculating a required torque T corresponding to the engine at the engine speed omega; comparing the required torque T with the engine torque interval [T1, T2] corresponding to the high-efficiency power generation interval [P1, P2] at the engine speed omega, and selecting a torque value; allowing the control range extender to operate at thepower point corresponding to the torque value. The invention controls the range extender to work at the optimum torque to improve the driving feeling, and ensures the best match between the range extender and the power battery, so as to obtain the best efficiency of the whole vehicle system.

The invention discloses a running control method for an air conditioner and refrigerator all-in-one machine. The running control method comprises the step of controlling the air conditioner and refrigerator all-in-one machine to be powered on, the step of obtaining the running status of the air conditioner and refrigerator all-in-one machine, the step of controlling 1 / 4 of a fourth control valve to be opened, controlling a fifth control valve and a seventh control valve to be closed, controlling an outdoor heat exchanger, an indoor heat exchanger and a refrigerator to be opened, and controlling a compressor to run at high frequency when the air conditioner and refrigerator all-in-one machine is subjected to refrigeration running, the step of obtaining the temperature deviation pn between indoor environment temperature and set temperature, and the step of controlling a first control valve, a second control valve, the fourth control valve and a sixth control valve to be fully opened, controlling 1 / 4 of a third control valve to be opened when the temperature deviation pn is smaller than T1 to enable the outdoor heat exchanger, the indoor heat exchanger and the refrigerator to be opened simultaneously, and controlling the compressor to run at high frequency. The running control method for the air conditioner and refrigerator all-in-one machine can realize complementation of functions of an air conditioner and functions of the refrigerator, and improves the whole running efficiency.

The present invention is a comprehensive cooling control method for the driving motor of a new energy vehicle. In the control method, the ambient temperature T, which has a significant influence on the cooling of the driving motor M, is first amb and vehicle speed V host The two parameters are introduced into the control of the water-cooling system, combined with a specific algorithm to obtain the target heat dissipation Q that requires the auxiliary heat dissipation of the water-cooling system aim , and further obtain the target inlet water temperature T for cooling the drive motor M aim ; Then based on the temperature, the speed requirements of the water pump P and fan F are calculated, and the control duty ratio of the water pump P and fan F is obtained by integrating the operation control logic; finally, the PWM signal is output through the hard line of the controller to realize the control of the water pump P And fan F start and stop, speed control. The control method takes the ambient temperature T amb and vehicle speed V host The two parameters are introduced into the control of the water-cooling system, and the heat dissipation demand of the drive motor M is considered and calculated more comprehensively and carefully. Based on this demand, the work of the water pump P and the fan F can be more accurately controlled, and the energy consumption for heat dissipation can be effectively reduced. consumption.

The invention discloses an operational control method of an air conditioner and refrigerator integrated machine. The operational control method includes the steps that the air conditioner and refrigerator integrated machine is controlled to be powered on; the operation state of the air conditioner and refrigerator integrated machine is obtained; when the air conditioner and refrigerator integrated machine conducts refrigeration operation, a third control valve is controlled to be opened by a / b, a fifth control valve and a seventh control valve are controlled to be closed, an outdoor heat exchanger, an indoor heat exchanger and a refrigerator are controlled to be started, and a compressor is controlled to conduct high frequency operation; and temperatures of a frozen area and a cold storage zone are obtained; when the temperatures of the frozen area and the cold storage zone reach setting temperatures, a first control valve, a second control valve, the third control valve and a sixth control valve are completely opened, a fourth control valve is controlled to be opened by c / d, the outdoor heat exchanger, the indoor heat exchanger and the refrigerator are controlled to be started, and the compressor is controlled to conduct high frequency operation; and when the air conditioner and refrigerator integrated machine conducts heating operation, the outdoor heat exchanger, the indoor heat exchanger and the refrigerator are controlled to be started, and the compressor is controlled to conduct high frequency operation. By means of the operational control method of the air conditioner and refrigerator integrated machine, complementation of an air conditioner and the refrigerator can be achieved, and the overall running efficiency is improved.

The invention discloses a laser cutting device and a light splitting assembly thereof. The light splitting assembly comprises a bracket, a reflecting mirror and a light splitting mirror, wherein the reflecting mirror and the light splitting mirror are parallel with each other and are arranged at intervals, and the light splitting mirror is arranged on one side, provided with a reflecting face, of the reflecting mirror. When laser beams illuminate the light splitting mirror in a preset angle, partial lights penetrate through the light splitting mirror, and the other lights are reflected to the reflecting mirror; after the lights are repeatedly reflected between the light splitting mirror and the reflecting mirror, the lights penetrating through the light splitting mirror form multiple groups of parallel emergent lights; the light splitting assembly can split the laser beams incident along the preset angle into multiple groups of parallel beams, and the energies of the beams are distributed according to a specific proportion, so that the energy distribution of light spots is more reasonable. Thus, when the laser cutting device is used for cutting, the light spots with the proper energies can be selected according to the requirements, and then the cutting yield is improved.

The invention discloses an operational control method for an air-conditioner and refrigerator all-in-one machine. The operational control method includes the steps that the air-conditioner and refrigerator all-in-one machine is controlled to be powered up; the operating state of the air-conditioner and refrigerator all-in-one machine is acquired; when the air-conditioner and refrigerator all-in-one machine operates in a refrigeration mode, a third control valve is controlled to be opened a / b, a fifth control valve and a seventh control valve are closed, an outdoor heat exchanger, an indoor heat exchanger and a refrigerator are opened, and a compressor operates at a high frequency; the temperature of a freezing area and the temperature of a cold storage area are obtained; and when the temperature of the freezing area and the temperature of the cold storage area reach a set temperature, a first control valve, a second control valve, the third control valve and a sixth control valve are all controlled to be opened, a fourth control valve is opened c / d, the fifth control valve and the seventh control valve are closed, the outdoor heat exchanger, the indoor heat exchanger and the refrigerator are opened at the same time, and the compressor operates at a high frequency. According to the operational control method for the air-conditioner and refrigerator all-in-one machine, complementation of the air-conditioner and refrigerator functions can be achieved, and the overall operation efficiency is improved.

The invention discloses an energy distribution device and method for a distributed electric vehicle driving compound energy source and the configuration and energy distribution method for the electric vehicle driving compound energy source. The energy distribution device and method solve the problem that due to the fact that a battery is adopted by an existing electric vehicle to serve as a power source, the driving mileage of the electric vehicle is not sufficient. A corresponding motor driving method is provided, so that a lithium battery-super capacitor compound energy electric vehicle can travel normally under different power requirements; meanwhile, energy distribution of the compound energy source is made more reasonable, the electric vehicle can work normally under different power requirements, and unnecessary energy waste is avoided; the driving mileage of the electric vehicle is increased. The energy distribution device and method are suitable for energy distribution of the distributed electric vehicle driving compound energy source.

The invention discloses an energy distribution method, equipment and medium of an automobile hybrid energy storage system, wherein the method is as follows: according to the average acceleration, average deceleration and acceleration and deceleration frequency of the driver's historical multiple driving, judging the driving style of the driver , can be aggressive type, standard type, calm type; according to the average power value of the car's historical driving and the average voltage of the lithium battery platform area, the average current of the lithium battery-driven car is calculated; according to the different driving styles of the driver, and based on the average current of The driver drives the car to set the corresponding logic threshold current of the lithium battery; based on the set logic threshold current of the lithium battery, the working current of the lithium battery and the super capacitor in the hybrid energy storage system of the vehicle is controlled. The invention can prolong the life of the lithium battery in the hybrid energy storage system of the electric vehicle and reduce the energy consumption of the hybrid energy storage system.

The invention relates to a low-load high speed / heavy-load low speed cylinder comprising a cylinder body, a piston, seal rings, a hollow first piston rod, a hollow second piston rod, and a control circuit for controlling telescoping of the cylinder. One end of the second piston rod is connected with the piston inside the cylinder body, and the other end of the second piston penetrates out of the cylinder body. One end of the first piston rod is connected with the cylinder body, and the other end of the first piston rod penetrates the second piston rod. One seal ring is arranged between the second piston rod and the piston, another seal ring is arranged between the second piston rod and the cylinder body, and the remaining seal ring is arranged between the first piston rod and the second piston rod. A piston cavity is formed between the cylinder body and the piston. A piston rod cavity is formed among the cylinder body, the second piston rod and the piston. A complex cavity is formed between the first piston rod and the second piston rod. One end of the first piston rod, connected with the cylinder body, is provided with a third oil hole, the cavity wall of the piston cavity is provided with a first oil hole, and the cavity wall of the piston rod cavity is provided with a second oil hole. The low-load high speed / heavy-load low speed cylinder has the advantages that while no additional input is added, operating cycle is shortened, production efficiency is improved and energy waste is reduced.

The invention provides a method for controlling the idling condition of a hydrogen fuel cell hybrid power system. The SOC of the hydrogen cell system judges whether the fuel cell system enters the idling working state from the normal operation mode. Whether the voltage of the single cell is less than or equal to 200mV, if so, turn off the hydrogen system, make the fuel cell system enter the idle stop waiting; then judge whether to restart the fuel cell according to the required power of the fuel cell system, the voltage of the supercapacitor system or the SOC of the nickel-metal hydride battery system system, if so, restart the fuel cell system to enter the normal operation mode.