314 results about "Hybrid car" patented technology

A solar energy system for a hybrid vehicle that utilizes an attachable solar panel to receive and convert solar energy into direct current electricity. A wiring harness directs the direct current electricity generated by the solar panel to a converter. The converter transforms the direct current electricity from a comparatively lower energy state to a comparatively higher energy state.

The application relates to the field of energy storage materials, and discloses a combined electrode with ultrahigh electron and ionic conductivity and a preparation method thereof. The combined electrode is formed in a manner that a battery active material is uniformly tied in a three-dimensional multi-hole network formed by carbon nano tubes which are connected in a crossing manner, and meshes and the surface of the active material are filled or coated with a solid electrolyte material. According to the combined electrode, the carbon nano tubes, which are communicated with one another, can form an ultrahigh electrical transmission network, on the one hand, a solid electrolyte can provide the ultrahigh lithium-ion transmission capacity while not influencing the connection of the carbon nano tubes and the conductive capacity of the electrode; on the other hand, the three-dimensional network formed by the carbon nano tubes is also fixed by virtue of the solid electrolyte, the formation of a solid electrolyte interface is controlled, and an active material is protected under the high charge-discharge voltage. The combined electrode has the high reversible capacity and the enhanced rate capability, and can meet the requirement of a power automobile or a mixed power automobile.

An exhaust emission control system of a hybrid car capable of relieving a load upon an engine fuel injection device by eliminating a use of sub-injection and recovering from S-poisoning as well as purifying an exhaust gas even by eliminating the use of sub-injection. The exhaust emission control system of an internal combustion engine, used for the hybrid car traveled by two types of power sources of a diesel engine and an electric motor, includes a combustion heater as separate body from the engine, a catalyst, provided in an exhaust passageway, for purifying an engine exhaust gas, a combustion gas passageway through which a combustion gas emitted from the combustion heater flows toward the catalyst, and a three-way valve for introducing the combustion gas to the catalyst via the combustion gas passageway or an EGR passageway when the diesel engine is in a stop state and when the electric motor is in a driving state.

The invention provides an anode comprising a nanocomposite of graphene-oxide and a silicon-based polymer matrix. The anode exhibits a high energy density such as ˜800 mAhg−1 reversible capacity, a superlative power density that exceeds 250 kW / kg, a good stability, and a robust resistance to failure, among others. The anodes can be widely used in a lithium-ion battery, an electric car, a hybrid electromotive car, a mobile phone, and a personal computer etc. The invention also provides a liquid phase process and a solid-state process for making the nanocomposite, both involving in-situ reduction of the graphene-oxide during a pyrolysis procedure.

In a hybrid car, or an electric motor-driven four-wheel-drive vehicle, in which an electric motor is driven directly by an output from a generator, vehicle running performance is enhanced. The output from the generator is controlled so as to maintain a generator torque in a range, in which the vehicle does not stall. Specifically, a driving apparatus for the hybrid car includes a second generator 2 driven by an engine 1 for driving one pair of either front or rear wheels 14, 15, an electric motor 5 driven through directly receiving the output from the second generator 2 and driving the other pair of either the front or rear wheels 14, 15, and a four-wheel-drive control unit 6 controlling driving of the second generator 2 and the electric motor 5. When the engine 1 is in an overloaded condition, the four-wheel-drive control unit 6 limits the output of the second generator 2.

The invention discloses a motor control method used in hybrid cars and a device thereof. The method is that firstly, the position and the rotating speed value of a motor rotator, an input current value of a motor, the inverter DC voltage value and a torque command are acquired by a microprocessor by an interface circuit; secondly, the three-phase voltage value required for the operation of the motor is obtained after computing; and finally the three-phase voltage value is converted into a signal to control the work of the inverter by an SVPWM in order to control the work of the motor. The saturation of a current regulator is judged from the PWM modulation index, the direct-axis current command value and the quadrature-axis current command value are automatically corrected according to the state of saturation, so as to automatically adapt to the changes of busbar voltage and motor parameters and achieve good static and dynamic performance indexes. The control device can automatically adapt to the changes of the inverter DC busbar voltage, can automatically complete natural switching of operation status between a weak sector and a non-weak sector, can precisely and rapidly respond to the torque control requirements, so as to achieve the operation within the wide range of speed.

The present invention is characterized by a hybrid car comprising a motor generator mechanically connected with the crank shaft of an internal combustion engine for driving a car wherein the internal combustion engine is started by electric power supplied by a battery and power is generated by rotation from the internal combustion engine to charge the battery, an inverter for controlling the drive and power generation of the motor generator, and a control circuit for controlling the inverter, this hybrid car further characterized in that the motor generator is driven by battery power to start the internal combustion engine, and after the internal combustion engine has started, the battery is charged by the generator mode operation of the motor generator using the power of the internal combustion engine, wherein a step-down chopper circuit is provided between the battery and the inverter, and step-down control is provided to ensure that the power generation voltage will reach the level of the battery charging voltage through the step-down chopper circuit.

The invention relates to a management and control method of a hybrid electric vehicle based on a digital twinning technology. According to the method, a hybrid electric vehicle digital twinning cloudvirtual model matched with a physical entity (hybrid electric vehicle) is built on a cloud simulation platform based on a digital twinning technology, and the simulation working environment of the hybrid electric vehicle digital twinning cloud virtual model is configured to be consistent with the actual working environment of the physical entity; a digital twin cloud storage computing platform dynamically collects physical data generated by operation of the physical entity and virtual data generated by operation of the cloud virtual model in real time and then performs data analysis and fusionprocessing; the data processing result is compared with the current hybrid electric vehicle operation data in real time to update the attribute characteristics of the cloud virtual model in real timeand obtain an optimal control strategy corresponding to the latest model based on the calibration performance and the current state of the physical entity in combination with the cloud online simulation technology, and the optimal control strategy is input into the physical entity to automatically change the operation control of the hybrid electric vehicle, thereby integrally achieving dynamic optimal control.

The invention discloses an energy management and control method for a plug-in four-wheel drive hybrid car. The method comprises a finished car working mode judgment method and a distribution and control method for torque in different working modes. On the basis of guaranteeing the driving performance of a finished car, the working modes of the hybrid car and working points of an engine, an ISG motor and a rear-drive motor in the different working modes are reasonably controlled. The basic energy management of the plug-in four-wheel drive hybrid car is achieved by using a concise and practical control strategy based on a logic threshold. Compared with the prior art, the energy management and control method and device have the advantages that by using the control method, on the basis of guaranteeing the power performance of the plug-in four-wheel drive hybrid car, the output torque of all power units are coordinated and controlled, so that the engine works in a low-fuel-consumption area as much as possible, and the fuel economy of the hybrid car is improved.

By a lean burn operation, a highly efficient operation region is enlarged, the proportion of engine operation in a low torque condition is increased, and the proportion of motor operation using a battery is decreased. It is possible to provide a hybrid car of an engine-electric motor configuration which can effect a highly efficient operation without increasing the capacity of motor and that of battery.

This invention relates to one mixture dynamic mobile DC to DC conversion control system and its method, which comprises high voltage dynamic power system and low voltage mobile electrical system and is characterized by the following parts: converter is connected to controller through one set of signal wire to combine converter and controller to fulfill control and execution, wherein, the converter determines the its work status according to low voltage electrical system and high voltage battery status and environment temperature and itself factors.

The invention discloses a hardware-in-loop test bed of a hybrid car brake coordination control system, which comprises a driver operation test system (1), a hydraulic brake test system (48), a data processing module (46) a model simulation test system and a motor brake test system (19), wherein, a hydraulic control valve (58) in the hydraulic brake test system (48) is a test object and can be replaced by other hydraulic valves to be tested for testing hydraulic work characteristic. A permanent magnet synchronous motor (34) in the motor brake test system (19) is the test object and can be replaced by other motors to be tested for testing energy recycling characteristic. A brake operation mechanism in the driver operation test system (1) is the test object and can be replaced by other operation mechanisms to be tested for testing the relation of master cylinder pressure, footplate stroke and footplate force. The hardware-in-loop test bed of the hybrid car brake coordination control system can carry out the integral performance test of the hybrid car brake control system which comprises hardware and control strategy.

A travel mode setting device for a hybrid car capable of ensuring the security against car theft and convenience when the car is lent to the third party. The hybrid car has travel drive sources and selectively uses one of them and can travel in one of travel modes. Authenticating means separately authenticate the car user and creates authentication results. Limiting means limits the travel modes to the usable travel modes according to the results of the authentication by the authenticating means.

The invention relates to a hybrid assembly test bed system of a passenger vehicle and belongs to the technical field of hybrid assembly test of passenger vehicles. A dynamometer control system is respectively connected with a dynamometer 1 and a dynamometer 2; the dynamometer control system is connected with a simulation development platform through Ethernet; a control unit is connected with the simulation development platform; the network interface of the control unit is connected with a battery simulator through a CAN (controller area network) bus; the hardware interface of the control unit is connected with an accelerator pedal, a brake pedal and a shift knob, and the control unit is internally provided with a virtual model; and the simulation development platform comprises a vehicle and assembly development simulation system and a remote controller. According to the invention, a systemic solution and a verification method are provided for hybrid car development, the entire car development cycle is shortened, and the entire car development cost is lowered, thus the system is innovation in the field of new energy source test equipment.

The invention discloses a hybrid car control method and system based on a fuel cell and a lithium cell. The method comprises the steps that a high-voltage electricity charging control instruction is received, the lithium cell is connected to a high-voltage loop circuit, and high-voltage electricity is charged for a complete vehicle; the electric quantity of the current lithium cell and the state of the fuel cell are detected; according to the detection result, a corresponding power supply control mode is sought in a preset cell state and control mode corresponding relation list, and power supply control is conducted on the fuel cell and the lithium cell according to the power supply mode obtained through seeking. The hybrid car control method based on the fuel cell and the lithium cell can fully bring advantages of the fuel cell and the lithium cell into play, a hybrid car can be environmentally friendly in discharge and can also be suitable for various complex working conditions, and the driving requirements are met; in addition, the utilization efficiency of energy power supply of the two kinds of the cells can be improved. That is to say, by means of the method, the car can completely use clean energy to promote environmental friendliness, the driving range can be increased, and the defect that the driving range of a full electric vehicle is short is overcome.

The invention discloses a method and system for gear shifting control of a hybrid car in a parallel connection mode. The method comprises the following steps: when the detected car speed meets a gear shifting condition, power sources are controlled to be unloaded; a clutch is controlled to be disengaged; the hybrid gear is controlled to be put into an idle gear; after the idle gear is engaged, the rotating speed of a driving motor is controlled to be adjusted to a target rotating speed; the adjusted actual rotating speed of the driving motor is taken as the target rotating speed, and the rotating speeds of an engine and an ISG motor are adjusted; after the adjustment, the hybrid car is put into a target gear; after the target gear is engaged, the clutch is controlled to be engaged, so that a gear shifting process is finished. The method and system have the advantages that the technical problems that in the prior art, the possibility of power source control conflict is high, so that the engine and the ISG motor are not integrated for control, and the conventional control process is complex can be solved; a gearbox controller is utilized for controlling the torque of the clutch and power sources during the gear shifting process, an active rotating speed adjustment process is added, and the engine and the ISG motor are integrated for control, so that the control during the gear shifting process is simple, the gear shifting time is shortened, and smooth gear shifting is realized.

The invention relates to a hybrid power transmission system and a control method thereof for a hybrid car. The hybrid power transmission system mainly comprises an engine, a first electric motor, a second electric motor, a planetary gear, a main shaft, a first clutch and a third clutch. Different operational modes of the hybrid power transmission system can be realized through controlling the engine, the first and the second electric motors to stop or work, and controlling the connection or disconnection of the first clutch, a second clutch or a brake and the third clutch.

The invention provides a drive system for a hybrid car, comprising a motor and an electric motor providing power for a gearing; a generator for receiving the power of the motor to generate electricity; and an electric power between the generator and the electric motor; the system also comprises a double clutch which is connected between the motor and the generator as well as the gearing and is used for transmitting the driving force of the motor selectively to the generator or the gearing. When a vehicle runs at a low speed, the double clutch is controlled to transmit the driving force of the motor to the generator to generate electricity; the electric motor receives the electric energy and outputs mechanical energy to the gearing to drive the vehicle, thus realizing a series type drive of the hybrid car. When the vehicle runs at a high speed, the double clutch is controlled to transmit the driving force of the motor directly to the geraing to drive the vehicle.

The present invention provides a lead-acid battery superior in high-efficiency charging characteristic to conventional lead-acid batteries; and a carbon material used in the lead-acid battery, having excellent charge acceptability. That is, the present invention provides a lead-acid battery which uses, as an additive to the anode active material, a simple substance and / or a compound thereof, both having a catalysis for desulfurization or a catalysis for SOX oxidation by adding to or loading on a carbon material such as active carbon, carbon black or the like and thereby has superior high-efficiency charging characteristic and improved charging acceptability. When such a lead-acid battery whose anode contains a carbon material containing or loading thereon the above simple substance and / or compound, is applied to electric cars, various hybrid cars, power storage systems, elevators, electromotive tools and power source systems such as uninterruptible power source, distributed power source and the like, all having high input and output requirements, stable control can be obtained.

The invention discloses a battery warm-up method for hybrid cars, and the method is that when the temperature of a car battery is lower, the battery can be recharged or discharged with small capacity to increase the internal temperature of the battery, so that the battery can work within the best using temperature range. The main steps are as follows: the temperature of storage batteries is checked and the car running state is determined; the SOC of the storage batteries is checked, if the SOC is lower than some set value, the rotating speed of an engine is increased in order to drive a hybrid motor to recharge the storage batteries; and if the SOC is higher than some set value, the storage batteries provide electricity for the hybrid motor to drive the engine until the electric energy is consumed to be lower than some set value, then the rotating speed of the engine is increased in order to drive the hybrid motor to recharge the storage batteries. The method makes use of the recharging or discharging work on the car storage batteries, so that the battery temperature is increased to the appropriate temperature without adding any hardware, and the method is simple and effective, and has high operability and practicability.

A control device for hybrid vehicle is provided with property alter means 88 that is operative based on whether or not an EV running mode is set and alters a given property used for determining demanded output torque TOUTt of a transmission mechanism by referring to an accelerator opening Acc. This suppresses occurrence of engine startup to meet a requirement for the EV running mode to be initiated. The property alter means alters the given property such that during an EV running mode turn-on state, demanded output torque TOUTt determined based on the accelerator opening Acc has a lower value than that set for an EV running mode turn-off state. That is, this causes a drop in sensitivity of demanded output torque TOUTt determined based on the accelerator opening Acc. Thus, the occurrence of engine startup induced upon depressive operation of an accelerator pedal during the EV running mode is suppressed.

The invention provides a power system and a battery heating method of a hybrid car. The system comprises a battery pack, a battery heater, a battery manager, a distribution box, a motor controller, an engine, a motor and a shielded inductor. The battery heater is connected with the battery pack; the battery manager is used for controlling the battery heater to heat the battery pack at first power or second power under a condition that the hybrid car is in an electric mode or hybrid mode when the temperature of the battery pack is lower than a first heating temperature threshold and residual electric quantity is higher than a driving electric quantity threshold. The motor controller is connected with the motor and the distribution box, provided with a first input end, a second input end and a pre-charging capacitor connected between the first input end and the second input end, and used for supplying power to the motor according to a control command and voltage distributed by the distribution box. The shielded inductor matches with the pre-charging capacitor of the motor controller. The power system can realize heating, and is high in heating efficiency, low in cost and high in practicality. The invention further provides the hybrid car.

An electrical energy system (1) in a hybrid car comprises an electrical motor (3), a capacitor (4) and a battery (5). The capacitor (4) is connected electrically to the electrical motor (3) and the capacitor (4) is switched in parallel with the battery (5) and the capacitor (4) has a rated voltage greater than 60V and the battery (5) has a rated voltage of less than 60V.

The invention relates to the technical field of mechanical power transmission, in particular to a driving device used for a hybrid car. The driving device comprises a motor input end, a first motor, a second motor, a single-row planetary system and a double-row Ravigneaux planetary system. The motor input end is connected with a first inner gear of the single-row planetary system, a rotor of the first motor is connected with a sun gear of the single-row planetary system, and a planetary frame of the single-row planetary system transmits power to a big sun gear and a small sun gear of the Ravigneaux planetary system. A rotor of the second motor is connected with a public planetary frame of the Ravigneaux planetary system, and power is transmitted by a second inner gear of the Ravigneaux planetary system. The motor achieves gear reversing. The driving device improves motor working efficiency of the motor, achieves serial connection, parallel connection, mixed connection, recovering of brake energy and the like, achieves the aim of reducing discharge and prolongs actual service life of a pure electric vehicle through a serial connection mode.

The present invention concerns an on-vehicle air-conditioner, resolving problems of the prior art, and allowing to perform cooling, heating, dehumidification or others efficiently even for vehicles of low waste heat, such as hybrid cars taking electricity and gasoline as energy source, idle stop coping cars or battery cars taking only electricity as energy source, or other vehicles, by cooling by loading a refrigeration circuit, using for example CO2 refrigerant, and provided with an electrically driven two-stage compression system compressor, and at the same time, installing a refrigerant heat exchanger for cooling the refrigerant, compressed in the first stage in a way to exchange heat with the car interior air, and using conveniently also for heating together with the heat of the cooling water for cooling the engine.

The invention provides a hybrid drive device, which is connected with wheels. The hybrid drive device comprises a double planetary row of a planetary frame, an engine, a first motor, a second motor, a differential mechanism, a first clutch and a second clutch wherein a sun wheel of a front planetary raw, a planetary wheel of the front planetary raw, an outer gear ring of the front planetary raw, the sun wheel of the rear planetary raw, the planetary wheel of the rear planetary raw, the outer gear ring of the front planetary raw, the front planetary raw and the rear planetary raw share the double planetary row of a planetary frame; and the planetary wheel of the rear planetary raw is meshed with the planetary wheel of the front planetary raw. The invention further provides a hybrid car which comprises the hybrid drive device, and a drive method of the hybrid drive device. Adopting the technical scheme of the invention, the problem that the oil consumption of the car during the running process is high due to unreasonably distributed power for the generator, the engine and the motor of the series-parallel hybrid system brought by the condition that the optimal output power of the engine can be adjusted by a manner that the generator works around zero rotation speed when the speed needed by the car is higher is solved.

The invention relates to the technical field of vehicles and discloses a method for controlling rotary speed of a cooling fan of a vehicle. The method comprises the following steps: detecting the working state of an air conditioning system in real time; determining the rotary speed V1 of the cooling fan needed by the air conditioning system; detecting the temperature of a heat management subsystem of each vehicle; calculating the rotary speed V2 of the cooling fan corresponding to the temperature of the heat management subsystem of each vehicle when the air conditioning system is under the working state; and comparing the rotary speeds V1 and V2 of the cooling fan, and adopting the maximum value of the two values as the rotary speed V, and controlling the cooling fan of the vehicle to work at the rotary speed V. With the adoption of the method for controlling rotary speed of the cooling fan of the vehicle, the heat for each heat dispassion system of the vehicle can be fully emitted, the temperature of some heat dispassion system can be prevented from being too low, the rotary speed of the cooling fan of the vehicle can be can adjusted according to the needs of the heat dispassion system of the vehicle, and the condition that each heat dispassion system is under the best working state is ensured. The invention further provides a hybrid car.