The invention relates to an automobile hydrogen cell temperature control system and a control method thereof. The temperature control system comprises a thermostat, an electronic water pump, a three-way valve, a radiator and a fuel gas heater, an interface 2 of the thermostat is connected with a cooling liquid outlet of a cell electric pile, an interface 1 of the thermostat is connected with a liquid inlet of the electronic water pump, a liquid outlet of the electronic water pump is connected with an interface 1 of the three-way valve, and an interface 2 of the three-way valve is connected with a cooling liquid inlet of the cell electric pile; an interface 3 of the thermostat is connected with one end of the radiator, and the other end of the radiator is connected with the liquid inlet ofthe electronic water pump; an interface 3 of the three-way valve is connected with a liquid inlet of the fuel gas heater, and a gas outlet of the fuel gas heater is connected with a cooling liquid inlet of the cell electric pipe; and the fuel gas heater is connected with an air pipeline and a hydrogen pipeline, and the hydrogen pipeline is connected with a hydrogen storage cylinder. The control system has the advantages of simple structure, flexible control and high adaptability, and the control method has the advantages of simple procedures, high execution efficiency and safe and reliable use.

Automobile hydrogen cell temperature control system and control method thereof

The invention relates to a cathode side gas humidity adjusting system and method for a proton exchange membrane fuel cell, and the system comprises an air filter, an air compressor, an intercooler, anair humidifier, a fuel cell stack, an exhaust back pressure valve, a tail gas processor, a humidity regulator, a three-way valve, and a fuel cell control unit. An outlet of the fuel cell stack is connected with an inlet of the humidity regulator, and the humidity regulator is connected with the air humidifier. The air humidifier is connected with the three-way valve, and the fuel cell control unit is connected with a water content sensor and a humidity regulator in the fuel cell stack. The humidity of air entering the fuel cell stack can be automatically adjusted according to the actual working requirements of the fuel cell stack, the phenomenon that the interior of the stack is too dry or too wet is avoided, the water balance in the stack is maintained, the output performance of the fuelcell is effectively improved, the operation stability of the fuel cell is guaranteed, and the reliability and durability of the stack are improved.

Cathode side gas humidity adjusting system and method for proton exchange membrane fuel cell

The embodiment of the invention discloses an electric power distribution method and device of a hybrid power system and a hybrid electric vehicle. The electric power distribution method comprises thefollowing steps: distributing the maximum discharge power of the high-voltage battery to the DC-DC module, the electronic supercharger and the at least one motor according to a preset distribution coefficient; calculating the total torque generated by the electronic supercharger and the at least one motor according to the preset distribution coefficient; obtaining the maximum total torque under different preset distribution coefficients and the distribution coefficient corresponding to the maximum total torque; and obtaining a rotating speed limit value of the electronic supercharger and a torque limit value of the at least one motor according to the distribution coefficient. According to the embodiment of the invention, the distribution coefficient for maximizing the torque can be calculated in real time, so that the hybrid electric vehicle obtains the optimal performance of a power system under the condition of battery power limitation, and maximization of the traction torque is realized.

Electric power distribution method and device of hybrid power system and hybrid electric vehicle

The invention discloses a fuel cell cold start device and a control method, and belongs to the technical field of automobiles. The device comprises a first circulating pump, a first heat exchanger anda first electric heating mechanism which are sequentially connected through pipelines to form a first circulating loop, and a second circulating pump, a second heat exchanger and a second electric heating mechanism which are sequentially connected through pipelines to form a second circulating loop. The first heat exchanger can heat a power cell, and the second heat exchanger can heat a fuel cell. The device also comprises a system controller and a power motor. The system controller is electrically connected with the fuel cell, the power cell, the first circulating pump, the first electric heating mechanism, the second circulating pump, the second electric heating mechanism and the power motor. Compared with the prior art, under the condition that the temperature of the fuel cell is lowerthan zero DEG C, the fuel cell can work with high output power, the fuel cell is heated, freezing of water generated in the fuel cell is avoided, rapid cold start is achieved, and the performance ofthe whole vehicle is improved.

Fuel cell cold start device and control method

The invention relates to an industrial process time-varying parameter estimation method based on multi-cell spatial filtering. The method comprises the following steps: acquiring a continuous stirredtank reactor (CSTR) time-varying parameter model structure, solving an optimal expansion coefficient through linear programming, and expanding the size of a time-varying parameter feasible domain positive polytope by utilizing the expansion coefficient, so as to enable the positive polytope in a polytope space to contain changed parameter values after expansion; after the optimal expansion coefficient is obtained, dynamically updating the time-varying parameter constraint condition by utilizing the expansion coefficient, obtaining the upper and lower bounds of the time-varying parameter by solving the limited number of linear programming conditions, and obtaining the parameter feasible region containing the time-varying parameter through the upper and lower bounds. The method solves the problems of low precision and poor real-time performance when the existing method is used for estimating the system parameters, and achieves the effects of reducing the calculated amount and improving the accuracy of the parameter estimation precision.

Industrial process time-varying parameter estimation method based on multi-cell spatial filtering

The invention discloses an energy recycling structure for an exhaust system of a fuel battery vehicle A turbine driving power generator is added in an exhaust passage of the fuel battery vehicle and comprises a turbo-supercharger, a power generator body and a voltage stabilizing circuit A turbine shaft of the turbo-supercharger is directly connected with a rotor shaft of the power generator body or connected with the rotor shaft of the power generator body through a gear decelerator, and the power generator body is electrically connected with the voltage stabilizing circuit In the driving process, the fuel battery vehicle drives a turbine to rotate through high-pressure gas exhausted by the exhaust system; the turbine drives the rotor shaft of the power generator body to rotate to achieve power generating of the power generator body; voltage output by the power generator body passes the voltage stabilizing circuit, and stable direct current voltage is output; the turbine driving power generator can work in a driving mode and a scavenging mode, and pressure and flow controlling of an air system of a fuel battery stack is achieved in an auxiliary mode; and the turbine driving power generator is added in the exhaust passage of the fuel battery vehicle, so that exhaust energy of the fuel battery vehicle is recycled and utilized, the utilization rate of the exhaust energy of the exhaust system is increased, and the recycled energy can be used flexibly

Energy recycling structure for exhaust system of fuel battery vehicle

The invention belongs to the technical field of fuel cell starting devices, relates to a combined low-temperature cold starting device for a fuel cell power system and a control method, and solves a problem that the fuel cell deals with difficult startup by adopting different heating modes under a low-temperature state so as to ensure the stable operation of the fuel cell. The combined low-temperature cold starting device is provided with a temperature sensor a, an electric heater, a liquid coolant circulating pump a, a power battery and an electric heater which are used for an electric heaterheating start mode, a temperature sensor b, a liquid coolant circulating pump b, a combustion gas heater and a fuel cell stack which are used for a high-temperature gas heating start mode, a temperature sensor c, a mixed gas heater and a fuel cell stack which are used for a fuel cell stack electrode catalytic heating start mode. The invention further provides a control method of the combined low-temperature cold starting device for the fuel cell power system, which selects different start modes through detecting the temperature.

Combined low-temperature cold starting device for fuel cell power system and control method

The invention discloses a vehicle fuel cell hydro-thermal management system and a control method thereof The vehicle fuel cell hydro-thermal management system comprises a small circulation heating system, a large circulation cooling system, a humidity regulating system and a control system which are connected in parallel on a fuel cell; the fuel cell is provided with a gas intake pipeline and a gas exhaust pipeline; a hydrogen pump and an air pump are arranged on the gas intake pipeline, and the control system comprises an ECU; signal lines of temperature sensors and humidity sensors are connected in parallel at the signal input end of the ECU; electric control lines of a water pump, a three-way valve, a proportional valve, a heater and a fan are connected in parallel at the signal outputend of the ECU The invention provides the hydro-thermal management system for heating and humidifying according to different working conditions of the fuel cell, with use of heat quantity and moisture in tail gas, a cooling liquid is heated through a heat exchanger, and a part of water vapor in the tail gas is led back to a cathode through the proportional valve to humidify air

Vehicle fuel cell hydro-thermal management system and control method thereof

The invention belongs to the technical field of engine air inlet systems, and relates to a fuel cell engine air inlet system control method based on map and linear quadratic model. The purpose is to control the peroxy ratio and the cathode pressure of a fuel cell stack, so that the fuel cell engine has good dynamic property and quick response capability. The method comprises the steps of firstly,modeling a fuel cell engine air inlet system; building the models of a compressor, an intake manifold and a stack cathode, secondly, calculating state balance points and steady-state control quantityunder various working conditions, and using linear quadratic form optimal control to design state feedback gain of a model after linearization of the fuel cell engine air inlet system under various working conditions; and finally, calibrating the feed-forward steady-state control quantity and the feedback gain by using the map, and designing a feed-forward and feedback controller. In order to verify the effectiveness of the controller, a simulation model is built in MATLAB/Simulink for verification.

A fuel cell engine air inlet system control method based on map and linear quadratic type

The utility model belongs to the technical field of fuel electric vehicles. The utility model relates to an energy distribution control system, in particular to a fuel cell vehicle hybrid power energydistribution control system. Including a controller, the controller is in electrical input connection with a control strategy module, a sensor assembly, a capacitance surplus sensor and a battery surplus sensor. The controller is in electrical output connection with a storage battery control module, a fuel cell control module, a fuel cell charging and discharging switch and a super capacitor control module. The utility model discloses an energy distribution control system for hybrid power of a fuel cell vehicle. Reasonable design, practicality, the output power of the fuel cell is enabled tobe close to the optimal working point of the fuel cell as much as possible in the fuel cell + power cell + super capacitor system; according to an optimization algorithm of a fuel consumption minimization principle, under a rule framework, the residual electric quantity fluctuation amplitude of the battery and the capacitor is smaller than before, so that the energy is completely recovered, the efficiency is high, and the energy waste is reduced.

Gao Jinwu

Papers

Energy recycling structure for exhaust system of fuel battery vehicle

Combined low-temperature cold starting device for fuel cell power system and control method

Vehicle fuel cell hydro-thermal management system and control method thereof

A fuel cell engine air inlet system control method based on map and linear quadratic type

Energy distribution control system for hybrid power of fuel cell vehicle