47 results about "Hybrid car" patented technology

The invention pertains to the use of porous, chemically interconnected, carbon nanofibres-comprising carbon networks as electrochemically active material in the anode of lithium or sodium batteries. It has been found that said carbon nanofibres-comprising carbon networks can beneficially be used in the anode of lithium or sodium batteries when added in an amount of 10-100 wt %. The benefits include a high capacity, high lifetime (stability over extended cycling), high charge and discharge rate and being resilient during manufacture and use. The porous, chemically interconnected, carbon nanofibres-comprising carbon networks can be used in the anode of lithium or sodium batteries of many areas of technology, such as smartphones, laptops and electric and hybrid vehicles.

The utility model belongs to the technical field of thermal management of automobiles, and particularly relates to a thermal management system of a hybrid electric vehicle, which is characterized in that an engine heat dissipation module, a battery pack heat dissipation module, an electric heat dissipation module, an air conditioner module and an internal cooling module are connected into a whole through pipelines and valves; the connection mode of the engine heat dissipation module, the battery pack heat dissipation module, the electric heat dissipation module, the air conditioner module and the internal cooling module is changed by controlling opening and closing of the valves, then multiple refrigerant circulation modes and multiple cooling liquid circulation modes are achieved, different heat management requirements are met, and the heat management system of the hybrid electric vehicle is high in integration degree and high in reliability. The structure is simple and control is convenient.

A plug-in hybrid electric vehicle heating heat management system comprises a compressor, a high-temperature and high-pressure refrigerant outlet of the compressor is connected with an external heat exchanger, and an outlet of the external heat exchanger is divided into two paths which are connected with a battery cooling plate heat exchanger and an HVAC respectively. The other end of the HVAC returns to the compressor through the gas-liquid separator; the battery cooling plate heat exchanger is arranged in a refrigerating and heating pipeline of a battery in series, the refrigerating and heating pipeline further comprises a battery heating plate heat exchanger connected with the battery cooling plate heat exchanger in series, and the two ends of the battery heating plate heat exchanger are connected to the water outlet end of an engine and the water return end of the engine respectively. A warm air core body in the HVAC is also connected to the water outlet end of the engine and the water return end of the engine. The system can achieve the functions of battery heating, driving heating, engine preheating and the like under the low-temperature condition, on one hand, engine waste heat can be fully utilized for heating batteries and driving, and on the other hand, the engine preheating waiting time can be shortened.

The invention relates to a battery module (10) for use in an electric or hybrid vehicle (100) comprising at least one module housing (20) and a plurality of battery cells (30) arranged within the module housing (20) with connection terminals (31) for electrically connecting the battery cells (30), wherein the module housing (20) at least partially encloses the plurality of the battery cells (30), and comprising a cooling circuit (40) with a dielectric coolant for direct flow around the battery cells (30) and the connection terminals (31) by the coolant and at least one compression pad (50) for compensating for volume changes of the battery cells (30), wherein the compression pad (50) is arranged in a gap (32) between two adjacent battery cells (30) in the coolant and is at least partially filled with the coolant.wherein the module housing (20) has a drain element (21) for emptying the cooling circuit (40) and a vacuum can be generated in the module housing (20) by means of the drain element (21) so that the coolant absorbed in the cooling circuit (40) and in the compression pad (50) can be pumped out by means of the vacuum.

The utility model belongs to the technical field of vehicles, and discloses a vehicle cooling system and a vehicle, and the vehicle cooling system comprises a first low-temperature radiator and a second low-temperature radiator which are connected in parallel with a nine-way valve, and a water-cooling intercooler and a motor assembly which are connected in parallel with the nine-way valve, the first low-temperature radiator is connected with the nine-way valve through a first branch, the second low-temperature radiator is connected with the nine-way valve through a second branch and a third branch, the second branch is connected with the third branch in parallel, the water-cooling intercooler is connected with the nine-way valve through a fourth branch, and the motor assembly is connected with the nine-way valve through a fifth branch. A nine-way valve is used for controlling respective on-off of the five branches and on-off among the branches, so that the cooling mode can be flexibly adjusted under different vehicle working conditions, the problem that the temperature of cooling liquid of a motor with the in-situ rapid charging function of a plug-in hybrid vehicle is high can be effectively solved, and the working temperature of a battery in a pure electric mode can be ensured; and the oil consumption of the hybrid mode engine is reduced.

The invention relates to a high-voltage battery (10), in particular for use in a hybrid vehicle, having a battery housing (70), wherein the battery housing (70) encloses an interior space with battery cells arranged therein, characterized in that the battery housing (70) is designed in two parts with a first receiving space (73) for receiving the battery cells and a second receiving space (74) for receiving safety devices for a plurality of secondary power paths (82), wherein a partition wall (75) is arranged between the first receiving space (73) and the second receiving space (74), wherein the partition wall (74) has at least one recess (77) for the passage of at least one main power path (80, 87) for contacting the battery cells, and wherein the secondary power paths (82) branch off from at least one main power path (80) for supplying electricity to various secondary consumers of a vehicle.

The invention discloses a steel-aluminum hybrid automobile front cabin structure and an automobile. The steel-aluminum hybrid automobile front cabin structure comprises a front longitudinal beam structure, an upper longitudinal beam structure, a vibration reduction tower structure, a torsion box structure, a front wall structure and a front wall lower plate structure. The front part of the front longitudinal beam structure is fixedly welded with the upper longitudinal beam structure in an aligned manner; the middle of the front longitudinal beam structure is fixedly connected with the vibration reduction tower structure in an aligned mode. The rear portion of the upper longitudinal beam structure is fixedly connected with the vibration reduction tower structure in an aligned mode. The rear end of the upper longitudinal beam structure and the rear end of the front longitudinal beam structure are fixedly connected with the front wall structure in an aligned mode. The front wall structure is fixedly connected with the torsion box structure below the front wall structure, and the front wall structure is fixedly connected with the front wall lower plate structure at the rear end of the front wall structure; according to the steel-aluminum mixed front cabin automobile structure, the weight of aluminum alloy accounts for 65%, and the weight of a front cabin area can be effectively reduced; therefore, the weight of the front cabin is effectively reduced, and the collision safety performance requirement and the strength requirement are met.

The utility model relates to the technical field of ferrous metallurgical machinery and production automation, and discloses a torpedo car capping robot baffle device which comprises a baffle base, the baffle base is formed by welding H-shaped steel, bases are movably installed above the two ends of the baffle base, and baffles are fixedly installed above the bases. The waist-shaped hole is formed in the bottom of the base, so that the left-right swing amplitude of the telescopic arm is adjusted, and the stability of equipment is ensured; a pin shaft hole is formed in the upper part of the bolt for fixing the pin shaft to prevent the telescopic arm from tilting upwards; threading holes are formed in the side surfaces of the connecting plates, so that wire transmission of electrical control is facilitated; the groove is designed in the upper portion of the baffle base, the vertical movement space of the telescopic arm is guaranteed, and compared with a traditional iron mixing car capping robot baffle device, the iron mixing car capping robot baffle device adjusts the left-right swing amplitude of the telescopic arm through the baffle, the stability of equipment is guaranteed, and use is convenient.

The present invention relates to an intermediate gearbox for hybrid vehicles, comprising: a housing, the housing accommodating a gear speed change system and a lubrication system; the housing comprising an upper housing, a middle housing, and a lower housing; a gear speed change system, the gear speed change system comprising an input shaft assembly and an output shaft assembly; a lubrication system, the lubrication system providing lubrication for the gearbox; wherein the lubrication system comprises a bidirectional gear oil pump, an oil pump input gear, an oil filter, an oil pump seat, an oil distributor, an oil pipe, a pipe joint, an oil passage, a magnetic steel, and an oil pan; the input shaft assembly and the output shaft assembly are provided with a bearing sleeve 1, a bearing sleeve 2, and a bearing sleeve 3, the oil passage is arranged on the housing, and the bidirectional gear oil pump is connected with the input shaft assembly and the oil inlets of the bearing sleeve 1, the bearing sleeve 2, and the bearing sleeve 3 through the oil distributor, the oil pipe, the pipe joint, and the oil passage. The present invention has the advantages of high transmission efficiency, low noise, excellent lubrication, long service life, good interchangeability, and easy installation and maintenance.

The present application relates to turbocharger lubrication technical field, specifically relates to a kind of turbocharger lubrication system for hybrid car, including main oil tank and the auxiliary oil tank being connected with main oil tank by first connecting pipe, first connecting pipe is provided with the first check valve of control flow direction as from main oil tank to auxiliary oil tank, main oil tank bottom end is connected with main oil outlet pipe, auxiliary oil tank bottom end is connected with auxiliary oil outlet pipe, auxiliary oil outlet pipe other end is connected with main oil outlet pipe, and flowmeter is arranged in the lower portion of main oil outlet pipe located auxiliary oil outlet pipe connecting section.This application provides sufficient lubricating oil standby for auxiliary oil pipe under the premise of not affecting the normal working condition of main oil tank and main oil outlet pipe, when flowmeter detects that the lubricating oil flow rate or flow in main oil outlet pipe is insufficient, push plate pumps lubricating oil in auxiliary oil tank into main oil outlet pipe, ensure that the lubricating oil flow rate and flow in main oil outlet pipe are normal in the two moments of engine start and stop.

To provide a method for alkalizing or re-alkalizing an electrode active material. [Solution] A method for direct or indirect electrochemical alkalization of an alkali metal-deficient electrochemical active material is described. This method includes either an electrolytic step during the alkalization of the alkali metal-deficient electrochemical active material on an electrode current collector (direct), or during the regeneration of the reducing agent used for alkalization of the electrochemical active material (indirect). In another embodiment, the electrochemical cell or battery as defined herein is for use in portable devices such as mobile phones, cameras, tablets or laptops, electric or hybrid vehicles, or renewable energy storage.

The utility model provides an electromagnetic vibration damping flywheel which comprises a flywheel body, an electromagnetic coil assembly, a damping spring, a suction plate, a spring compression flail block and a flail block connecting shaft, the electromagnetic coil assembly is arranged on one side of the suction plate, a center shaft column is arranged on the other side of the suction plate, the flail block connecting shaft is sleeved on the center shaft column, the spring compression flail block is connected to the flail block connecting shaft, and the spring compression flail block is connected to the flail block connecting shaft. The spring support is arranged on the middle shaft column below the flail block connecting shaft, the periphery of the spring pressing flail block is sleeved with the damping spring, the upper end of the damping spring is connected with the suction plate, and the lower end of the damping spring is connected with the spring support. The spring support, the spring pressing flail block and the damper spring are integrally arranged in an inner cavity of the flywheel, and the outer side of the damper spring is coupled with the side wall of the inner cavity through friction force. The damping spring and the flywheel are coupled between the engine and the driving motor, vibration reduction and smoothing of torque fluctuation of the engine are achieved, and meanwhile the power-on and power-off states of the electromagnetic coil can be matched so as to solve the dynamic load problem caused by series connection of the engine and the driving motor in a hybrid vehicle.

The utility model discloses a kind of imidacloprid suspending agent spraying devices, belong to imidacloprid suspending agent spraying device technical field, its technical scheme main points include electric hybrid car, the inner wall of the electric hybrid car is provided with stirring shaft, the left side of the electric hybrid car is fixedly connected with lifting frame, the left side of the lifting frame is provided with telescopic hose, the bottom of the telescopic hose is movably connected with spraying mechanism, the left side of the electric hybrid car is provided with pump body, solve the existing imidacloprid suspending agent spraying device when using, device moves with poor site adaptability, difficult to flexibly respond different operation scene, and height adjustment, component synergy is insufficient, easily lead to spraying height and target mismatch, uneven distribution of reagent, simultaneously, reagent mixing is mostly dependent on manual stirring of staff, when carrying out a period of spraying work, easy to appear precipitation condition, affect subsequent spraying effect, reduce the problem of pest control quality.

The present application belongs to the technical field of hybrid cars and power batteries, in particular to a power battery self-heating method, system, car and computer readable storage medium. The power battery self-heating method comprises the following steps: responding to a heating request; obtaining vehicle state information, matching corresponding self-heating mode information according to the vehicle state information, the vehicle state information including gear information, engine working information and vehicle fault information, and the self-heating mode information including idling self-heating mode information and driving self-heating mode information; and executing a response according to the self-heating mode information, and controlling the power battery to repeatedly charge and discharge to realize self-heating of the power battery. Therefore, the present application can rely on the existing system architecture of the hybrid car, control the power battery to repeatedly charge and discharge within a preset power range to realize self-heating of the power battery. The cost of the vehicle is reduced, better heating uniformity is realized, and the user experience is improved.

Polymer derived ceramic (PDC) materials, compositions and methods of making high capacity, long cycle, long life battery anodes to improve the performance of batteries of all types, including but not limited to coin cell batteries, electric vehicle (EV) batteries, hybrid electric vehicle (HEV) batteries, plug-in hybrid electric vehicle (PHEV) batteries, battery electric vehicle (BEV) batteries, lithium cobalt (LCO) batteries, lithium iron (LFP) batteries; and lithium-ion (Li) batteries, and lead acid batteries. Silicon is incorporated in the PDC material at a molecular level when reacting a polymer derived ceramic precursor and a silicon hydride constituent or a silicon alkoxide constituent to form a PDC composition useful as a powdered battery anode material. A predetermined amount of divinylbenzene is added as a crosslinker and a modifier to increase free carbon content. The resulting battery anode materials increase the specific capacity of a battery measured in milliampere-hours per gram (mAh / g) and increase the life cycle of a battery while minimizing distortion and stress of the anode structure.

The invention relates to a vehicle chassis structure for installing a battery pack on a platform, which comprises a vehicle body chassis assembly comprising a left doorsill longitudinal beam and a right doorsill longitudinal beam which are parallel to each other and arranged at an interval, and a vehicle body front floor and a dash panel lower cross beam which are fixedly connected between the left doorsill longitudinal beam and the right doorsill longitudinal beam; the battery pack installation assembly comprises a bolt hole located in the front wall plate lower cross beam, a battery pack front installation support connected to the front wall plate lower cross beam and a battery pack side installation beam connected to the automobile body front floor, and the bolt hole is used for detachably installing a first battery pack; and the battery pack front mounting bracket and the battery pack side mounting beam are used for detachably mounting a second battery pack together. According to the invention, the battery pack front mounting bracket and the battery pack side mounting beam are added or canceled on the vehicle body chassis assembly, so that the battery packs of different vehicle types can be switched and mounted, the difference between a pure electric vehicle and a hybrid electric vehicle is effectively reduced, and the part management difficulty and the production switching requirement are reduced.

A cutter for machining a camshaft hole of a camshaft chamber of a new energy hybrid vehicle engine comprises a tapping cutter holder, a main tapping cutter shaft, a plurality of transition cutter shafts, a tail end cutter shaft, side cutter blocks, a driving bevel gear, a driven bevel gear and a cutter block adjusting screw rod, the main tapping cutter shaft is arranged at the bottom of the tapping cutter holder, and the transition cutter shafts are arranged at the bottom of the main tapping cutter shaft. A tail end cutter shaft is arranged at the bottom of the transition cutter shaft, a trepanning cutter is arranged at the bottom of the tail end cutter shaft, one end of the main trepanning cutter shaft and one end of the transition cutter shaft are each provided with a cutter shaft position adjusting screw and a cutter shaft butt joint column, the cutter shaft position adjusting screws are located in the middle, and the cutter shaft butt joint columns are evenly arranged around the cutter shaft position adjusting screws. The other end of the transition cutter shaft and the other end of the tail end cutter shaft are each provided with a position adjusting pipe connecting groove and a cutter shaft butt joint groove, the position adjusting pipe connecting grooves are located in the middle, and the cutter shaft butt joint grooves are evenly arranged around the position adjusting pipe connecting grooves.

A method for cooling a battery of an electric or hybrid vehicle, including: determining a curve showing the theoretical thermal power dissipated by the battery as a function of time during continuous charging of the battery at maximum charging power, and of the battery charging duration, determining a maximum thermal power dissipated by the battery during charging, determining a maximum cooling power of a device for cooling the battery, determining a theoretical maximum temperature reached by the battery during charging at maximum charging power, comparing the maximum cooling power with the maximum thermal power dissipated by the battery, and then starting the charging of the battery and, as a function of comparison, imposing a cooling power on the cooling device at one or more successive levels decreasing over time.

The invention relates to a high-voltage battery with a battery housing having an interior in which battery cell modules are arranged, in particular for an electric and / or hybrid vehicle.The high-voltage battery comprises at least one first battery unit (10) and one second battery unit (20) arranged in or forming part of the battery housing, and at least one EMC bridge (30) for electrical contact between the first battery unit (10) and the second battery unit (20), wherein the EMC bridge (30) is designed as a separate component that can be inserted into a contact space between the first battery unit (10) and the second battery unit (20), wherein the EMC bridge (30) has one or more knife edges (40) arranged in a pattern to penetrate paint or insulating layers of the first battery unit (10) and / or the second battery unit (20) during the assembly of the high-voltage battery and to establish an electrical connection between the first battery unit (10) and the second battery unit (20).

The present application relates to the technical field of lubricating oil, in particular to an anti-electric corrosion engine oil for hybrid cars and a preparation method thereof, the present application uses modified synthetic base oil as a carrier, and combines modified anti-electric corrosion complex agent, polylactic acid / polyurethane composite modifier and nano modified filler and other functional components, and realizes molecular level compatibility and synergistic effect of each component through the preparation method of raw material pretreatment, step-by-step compounding, ultrasonic dispersion and precise process control, effectively solves the problem of insufficient compatibility of anti-electric corrosion components, base oil and functional modifiers in the prior art, achieves the comprehensive effect of stable and continuous anti-electric corrosion protection, viscosity performance adaptation to engine working condition, outstanding oxidation stability, excellent lubricating and anti-wear effect and good low temperature adaptability, and has wide application prospect in the field of lubrication and protection of hybrid car engines.

The present invention relates to an AI-assisted mist-cooling thermal management system (100) of cylindrical lithium-ion battery (LiB) module (200c) to enhance heat dissipation, maintain thermal-uniformity, enhance safety and cycle life. The system includes an acrylic air-flow channel (300) of divergent (401), straight (402) and convergent shape (403) to distribute atomized mist-air from intake fans (107) to cylindrical cells and discharge humid air by exhaust fans (108). Each cylindrical cell (101) is coated with hydrophilic material (202), to reduce the contact angle less than 20° which permits thin-film evaporation, electrical insulation, and resist corrosion. Dual atomizer arrays (109) on both sides of the cells form fine mist droplets of 10–30 µm supplied via a peristaltic pump. Dual intake fans (107) and exhaust fans (108) provide forced convection to accelerate evaporation and maintain uniform cell temperatures. An AI-based microcontroller processes real-time data from temperature and conductivity sensors to predicts and prevents faults and thermal runaway. So, by combining mist-cooling using thin film evaporation, hydrophilic surface treatment, air-flow management channel and intelligent control system results in a thermal management system which is effective in heat removal, minimized energy and water consumption, and increased battery life. It is portable, lightweight, scalable and can be applied to electric cars, hybrid cars, stationary storage, aerospace and industrial battery systems.

The invention relates to an installation unit (100) for a high-voltage battery with a battery housing having an interior in which battery cell modules are arranged, particularly for an electric and / or hybrid vehicle. The installation unit (100) comprises a battery cover (10) and a battery frame (40); wherein the battery cover (10) has an inner side facing the interior of the battery housing and an outer side facing away from the interior of the battery housing, wherein a Battery Management Controller extended (BMCe) (20) is mounted on the inner side, and wherein the battery cover (10) is screwed to the battery frame (40) from the inside, thereby ensuring a mechanically stable and corrosion-resistant connection;wherein the BMCe (20) has contact elements (28) for automatic self-contacting between the contact elements (28) on the BMCe (20) and high-voltage battery contacts of the high-voltage battery, thereby enabling an electrical connection without manual intervention; and wherein a sealing line (50) is provided between the battery cover (10) and the battery frame (40) for a watertight seal between the battery cover (10) and the battery frame (40).

The present invention provides a hybrid vehicle which more appropriately performs adjustment of power storage ratio adjustment control such as congestion travel control and downhill travel control, and motor travel area travel control. A control device for a hybrid vehicle includes a motor travel region set as a region in which motor travel is to be performed in a planned or estimated travel path. And motor travel area travel control in which the power storage ratio of the power storage device is increased from a point which is a first predetermined distance before the start point of the motor travel area so that motor travel can be performed in the motor travel area is performed more preferentially than the power storage ratio adjustment control.

The application discloses a kind of based on hybrid vehicle power assembly semi-active suspension control system and method, it is related to power assembly suspension system technical field, the semi-active suspension control system includes: driving mode control unit, engine management system, motor control unit, power assembly left suspension and power assembly right suspension, realize semi-active suspension real-time control, no delay and lag, utilize driving mode control unit and the related signal of speed, vehicle speed, for hybrid car cold / hot engine idle, cold / hot engine start, series / parallel acceleration and multiple operating conditions, realize the adjustment of semi-active suspension stiffness and damping, power state semi-active suspension is small stiffness, small damping, power-off state semi-active suspension is large stiffness, large damping, carry out semi-active suspension stiffness and damping adjustment, cover all operating conditions of hybrid car, fully guarantee driving and ride comfort, maximum degree guarantee hybrid car in whole operating condition running process Vehicle NVH performance.

The present application relates to the technical field of rail vehicle structure, more particularly to a steel-aluminum hybrid car body structure.The present application provides a steel-aluminum hybrid car body structure, comprising: a transition aluminum plate, an aluminum pad plate, an adjusting pad plate, a bottom frame aluminum alloy section and a bottom frame carbon steel section; one end of the transition aluminum plate is connected with an end beam of the bottom frame aluminum alloy section, and the other end is connected with the bottom frame carbon steel section, for continuous and smooth transition from the bottom frame aluminum alloy section to the bottom frame carbon steel section; the aluminum pad plate is connected with the middle part of the transition aluminum plate, and the aluminum pad plate is located below the transition aluminum plate; the adjusting pad plate is located between the aluminum pad plate and the bottom frame carbon steel section, for adjusting the flatness of the upper surface of the transition aluminum plate according to the actual gap.The present application guarantees the continuity and flatness of the surface of the bottom frame through the combination of the transition aluminum plate, the aluminum pad plate and the adjusting pad plate, realizes the cancellation of the bottom plate laying link, the direct laying of the floor covering, reduces the weight of the car body, saves the cost, and increases the net height size of the passenger compartment.

The utility model provides a kind of lower body structure and including its hybrid car, lower body structure includes exhaust pipe threshold integrated structure and heat sink, exhaust pipe in exhaust pipe threshold integrated structure is worn in threshold, heat exchange pipe is set in the outer periphery of exhaust pipe and has communicating port;Heat sink includes multiple heat exchanger and the flow path switching component between multiple heat exchanger and communicating port is set, flow path switching component can selectively communicate one heat exchanger with communicating port, to make heat exchange pipe and corresponding heat exchanger communicate and form cooling circuit.Exhaust pipe is integrated with threshold, save the space occupied by exhaust pipe in lower body, save the space for the arrangement of power battery, utilize cooling medium in heat exchange pipe and exhaust pipe heat exchange, avoid high temperature exhaust pipe harm threshold and peripheral parts;Cooling medium after exhaust pipe heat exchange can select and heat exchange in multiple heat exchanger, to dissipate heat to outside, or utilize the heat of exhaust pipe.

The invention discloses an electric hook-off and parking system for a hybrid car and a hook-off and parking method. The electric hook-off and parking system for a hybrid car comprises: a control module, a hook tongue state detection module, a first drive mechanism, a hook-off mechanism, a first position detection module, a second drive mechanism, a parking mechanism and a power module. The output end of the hook tongue state detection module is electrically connected to the input end of the control module, and the output end of the control module is electrically connected to the control end of the first drive mechanism. The hook-off mechanism comprises a first transmission member, a first screw rod and a lifting ring. The first drive mechanism is connected to the first screw rod through the first transmission member, and the lifting ring is installed on the hook tongue pin. The first screw rod is connected to the lifting ring. The output end of the first position detection module is electrically connected to the input end of the control module, and the output end of the control module is electrically connected to the control end of the second drive mechanism. The parking mechanism is used to perform parking brake on the hybrid car, and the second drive mechanism is transmission-connected to the parking mechanism, and the power module is used to supply power.

The invention relates to an electric or hybrid motor vehicle (100) comprising a battery tray (1), said battery tray (1) comprising a base plate (2) and at least one channel (3), said channel (3) comprising at least one orifice (4), said battery tray (1) comprising at least two accumulators (5), the battery tray (1) comprising a cooling circuit for circulating a dielectric fluid, characterized in that the orifice (4) comprises a float, said float comprising an upper part (6a) and a lower part (6b) along the third direction (Z), said upper part (6a) and said lower part (6b) being connected by a rod (6c), said float being capable of having two positions: a first position in which said orifice (4) is open and a second position in which said orifice (4) is closed by said float. Figure 1

A method to control car having: at least one electric motor connected to the two drive wheels; a first generation assembly having a first electric generator and a first internal combustion engine provided with a first drive shaft, which is mechanically connected only to the first electric generator; and a second generation assembly having a second electric generator, which is mechanically independent of the first electric generator, and a second internal combustion engine provided with a second drive shaft, which is mechanically connected only to the second electric generator. The control method comprises the steps of: controlling the two internal combustion engines in a synchronous manner so as to cause the two internal combustion engines to rotate at the same rotation speed in order to obtain a regular sound generation; or controlling the two internal combustion engines in an asynchronous manner so as to cause the two internal combustion engines to rotate at different rotation speeds in order to obtain an irregular sound generation.

The power conversion electronic appliance (A) for electric cars, installable on an electric vehicle without low-voltage battery and connectable to two electric batteries (B1, B2) for the power supply of the electric vehicle connected in series with each other, comprises three single-phase battery chargers (OBC1, OBC2, OBC3), wherein: a first single-phase battery charger (OBC1) is connected to a first high-voltage electric battery (B1) for the power supply of the electric vehicle and supplies the first electric battery (B1); a second single-phase battery charger (OBC2) is connected to a second high-voltage electric battery (B2) for the power supply of the electric vehicle and supplies the second electric battery (B2); a third single-phase battery charger (OBC3) is connected in series to the first electric battery (B1) and to the second electric battery (B2) and supplies the first and second batteries (B1, B2) in series; and wherein the first single-phase battery charger (OBC1) and the second single-phase battery charger (OBC2) comprise a first and a second built-in low-voltage DC / DC converter respectively, which are configured for the low-voltage power supply to the low-voltage circuits of the electric vehicle.