High-voltage framework suitable for extended-range wide-body vehicle

Abstract

The utility model provides a high-voltage framework suitable for an extended-range wide-body vehicle. A charging gun, a power battery and a battery water cooling unit are electrically connected with a battery BDU respectively; the battery BDU is electrically connected with the controller assembly; the controller assembly is electrically connected with a brake air pump motor, a storage battery, a steering oil pump motor, an electric air conditioner, an electric heating PTC, a main drive motor assembly, a heat dissipation system, a loading lifting motor, an auxiliary drive motor and a generator. The main drive motor assembly comprises a first main drive motor, a second main drive motor, a third main drive motor and a fourth main drive motor, and the first main drive motor, the second main drive motor, the third main drive motor and the fourth main drive motor are all in power connection with the reduction gearbox. The adaptive high-voltage framework is arranged for the extended-range wide-body vehicle, the four main drive motors in the power system are directly connected with the transmission shaft through the reduction gearbox, the problems of pause, power interruption and the like during gear shifting of the vehicle can be solved by adjusting the torque and the rotating speed of the four main drive motors, and the safety of the vehicle is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of high-pressure architecture suitable for range extending wide-body vehicle, belong to range extending vehicle technical field. BACKGROUND

[0002] Wide-body vehicle is a non-highway cargo vehicle used in mine working conditions, which is a self-unloading truck. Due to the requirement of the state for high-quality development of mines, green mines have become a development trend, and the demand for new energy mine wide-body vehicles in the market is also increasing.

[0003] New energy wide-body vehicles are divided into pure electric wide-body vehicles and range extending wide-body vehicles. The range extending wide-body vehicle needs to carry many high-voltage components, including power batteries, energy distribution units, generators, drive motors, lifting motors, steering oil pump motors, brake air pump motors, DC / DC, electric air conditioners, electric heating PTCs, etc. The safety of the high-voltage system composed of these components, the operability of the whole vehicle, and the service life of the high-voltage components are all closely related to the high-voltage architecture of the whole vehicle.

[0004] At the same time, due to the harsh working conditions of wide-body vehicles, they need to work for a long time under heavy load uphill or downhill, which causes a high failure rate. This puts a greater test on the power system of the wide-body vehicle. SUMMARY

[0005] The utility model provides a kind of high-pressure architecture suitable for range extending wide-body vehicle, to solve the safety and driving experience of range extending wide-body vehicle when driving on slope, avoid the jerk of vehicle gear shifting, and ensure the continuous output of power by setting reduction gearbox and designing adaptive high-pressure architecture, in view of the deficiencies in the prior art.

[0006] Technical scheme: a kind of high-pressure architecture suitable for range extending wide-body vehicle, including charging gun, power battery, battery water cooling unit, battery BDU, controller assembly, brake air pump motor, battery, steering oil pump motor, electric air conditioner, electric heating PTC, main drive motor assembly, reduction gearbox, heat dissipation system, upper-mounted lifting motor, auxiliary drive motor and generator;

[0007] The charging gun, power battery and battery water cooling unit are electrically connected to the battery BDU respectively;

[0008] The battery BDU is electrically connected to the controller assembly;

[0009] The controller assembly is respectively electrically connected to the brake air pump motor, battery, steering oil pump motor, electric air conditioner, electric heating PTC, main drive motor assembly, heat dissipation system, upper-mounted lifting motor, auxiliary drive motor and generator;

[0010] The main drive motor assembly comprises a first main drive motor, a second main drive motor, a third main drive motor and a fourth main drive motor, and the first main drive motor, the second main drive motor, the third main drive motor and the fourth main drive motor are all connected with the reduction gearbox.

[0011] The utility model discloses a high pressure architecture that is set up adaptively for the extended-range wide-body vehicle, four main drive motors in the power system are directly connected with the transmission shaft through the reduction gearbox, and the problems of jerk and power interruption during gear shifting of the vehicle can be solved through torque and rotating speed adjustment of the four main drive motors, the problem of losing power during gear shifting of the wide-body vehicle on a slope is avoided, and the safety of the vehicle is improved. Meanwhile, an auxiliary drive motor is added, flexible distribution of power is realized, the possibility of complete paralysis of the whole vehicle power system is reduced, and the reliability of the vehicle is improved.

[0012] The controller assembly comprises a main all-in-one controller, an auxiliary all-in-one controller, a single motor controller and a generator controller.

[0013] The main all-in-one controller is respectively connected with a brake air pump motor, a storage battery, a steering oil pump motor, an electric air conditioner, an electric heating PTC, a first main drive motor and a second main drive motor.

[0014] The auxiliary all-in-one controller is connected with a third main drive motor, a fourth main drive motor, a heat dissipation system and an upper-mounted lifting motor.

[0015] The single motor controller and the auxiliary drive motor are respectively connected.

[0016] The generator controller is connected with a generator.

[0017] In order to avoid the difficulty in application caused by power and interface limitation of a single controller, the controller assembly is set as four separate controllers, power and interface are adapted to corresponding electric equipment, production cost is reduced, the auxiliary drive motor and the generator are controlled separately, and the stability of the whole high-voltage system is improved.

[0018] The charging gun comprises a first charging gun and a second charging gun, and the first charging gun and the second charging gun charge the power battery through the battery BDU through the external power grid.

[0019] Through the setting of two charging guns, a single or multiple charging guns can be selectively used for charging according to the current vehicle demand, and charging can still be performed when any one charging gun has a problem, so that the vehicle can be normally used.

[0020] The battery water cooling unit comprises a first battery water cooling unit and a second battery water cooling unit, the first battery water cooling unit and the second battery water cooling unit are directly communicated with a battery control system integrated in the battery BDU, and are used for heating or cooling the power battery system.

[0021] Setting two battery water cooling units can quickly heat or cool in extreme environments, guarantee the normal operation of the vehicle, keep the power battery at an appropriate working temperature, and at the same time, reduce the working pressure of a single battery water cooling unit, and guarantee the long-time use of the equipment.

[0022] The battery BDU includes a first charging positive relay, a first charging negative relay, a second charging positive relay, a second charging negative relay, a main positive relay, a main positive pre-charging relay, a main positive pre-charging resistor, a main negative relay;

[0023] The first charging positive relay and the first charging negative relay are located on the high-voltage loop of the first charging gun, and are used for controlling the charging function of the first charging gun;

[0024] The second charging positive relay and the second charging negative relay are located on the high-voltage loop of the second charging gun, and are used for controlling the charging function of the second charging gun;

[0025] The main positive relay and the main negative relay are located on the main loop of the high-voltage system of the vehicle, and are total switches for all electric appliances of the vehicle, the main positive pre-charging relay and the main positive pre-charging resistor are connected in series, and the series circuit composed of the main positive pre-charging relay and the main positive pre-charging resistor is connected in parallel with the main positive relay.

[0026] Under the condition of meeting the high-voltage power-on, the main negative relay is closed before the main positive relay by controlling the program setting, to protect the safety of the circuit, the main positive pre-charging relay is closed before the main positive relay, and after the voltage difference at both ends of the main positive relay is less than 5V, the main positive pre-charging relay is disconnected, the main positive relay is closed, the power-on of the main loop is realized, and the main positive pre-charging resistor limits the size of the current during pre-charging, to prevent the current impact caused by the too large voltage difference in the initial pre-charging period.

[0027] The main multi-in-one controller includes a first auxiliary drive relay, a first auxiliary drive pre-charging relay, a first auxiliary drive pre-charging resistor, a second auxiliary drive relay, a second auxiliary drive pre-charging relay, a second auxiliary drive pre-charging resistor, a PTC relay, a first main drive relay, a first main drive pre-charging relay, a first main drive pre-charging resistor, and a first main drive pre-charging capacitor;

[0028] The first auxiliary drive relay, the first auxiliary drive pre-charging relay, and the first auxiliary drive pre-charging resistor are located on the sub-loop of the brake air pump motor and the storage battery, the first auxiliary drive pre-charging relay and the first auxiliary drive pre-charging resistor are connected in series, and the series circuit composed of the first auxiliary drive pre-charging relay and the first auxiliary drive pre-charging resistor is connected in parallel with the first auxiliary drive relay, to control the power distribution of the brake air pump motor and the storage battery;

[0029] The second auxiliary drive relay, the second auxiliary drive pre-charging relay and the second auxiliary drive pre-charging resistor are located on a sub-circuit of a steering oil pump motor and an electric air conditioner, the second auxiliary drive pre-charging relay and the second auxiliary drive pre-charging resistor are connected in series, and a series circuit composed of the second auxiliary drive pre-charging relay and the second auxiliary drive pre-charging resistor is connected in parallel with the second auxiliary drive relay, for controlling power distribution of the steering oil pump motor and the electric air conditioner.

[0030] The PTC relay is located on a sub-circuit of an electric heating PTC;

[0031] The first main drive relay, the first main drive pre-charging relay, the first main drive pre-charging resistor and the first main drive pre-charging capacitor are located on a sub-circuit of a first main drive motor and a second main drive motor, the first main drive pre-charging relay and the first main drive pre-charging resistor are connected in series, and a series circuit composed of the first main drive pre-charging relay and the first main drive pre-charging resistor is connected in parallel with the first main drive relay, and the first main pre-charging capacitor is connected in parallel between a positive circuit and a negative circuit in which the first main drive relay is located.

[0032] DC / AC converters are arranged on sub-circuits of the brake air pump motor, the steering oil pump motor, the first main drive motor and the second main drive motor; and a DC / DC converter is arranged on a sub-circuit of the storage battery.

[0033] Each pre-charging relay and pre-charging resistor in the main all-in-one controller is connected before a main circuit relay is connected, so as to protect the circuit from current impact and damage to the electrical appliances; each DC / DC converter is used to convert high-voltage current into low-voltage current, so as to adapt to the normal operation of the electrical appliances, and the DC / AC converter is used to convert direct current into alternating current for normal use of the electrical appliances; and each converter reports the state in real time during operation, so as to facilitate the operator to understand the current vehicle state.

[0034] The auxiliary all-in-one controller includes a second main drive relay, a second main drive pre-charging relay, a second main drive pre-charging resistor, a second main drive pre-charging capacitor, a third auxiliary drive relay, a third auxiliary drive pre-charging relay and a third auxiliary drive pre-charging resistor.

[0035] The second main drive relay, the second main drive pre-charging relay, the second main drive pre-charging resistor and the second main drive pre-charging capacitor are located on a sub-circuit of a third main drive motor and a fourth main drive motor, the second main drive pre-charging relay and the second main drive pre-charging resistor are connected in series, and a series circuit composed of the second main drive pre-charging relay and the second main drive pre-charging resistor is connected in parallel with the second main drive relay, and the second main pre-charging capacitor is connected in parallel between a positive circuit and a negative circuit in which the second main drive relay is located.

[0036] The third auxiliary drive relay, the third auxiliary drive pre-charging relay and the third auxiliary drive pre-charging resistor are located on the sub-circuit of the heat dissipation system and the upper-mounted lifting motor, the third auxiliary drive pre-charging relay and the third auxiliary drive pre-charging resistor are connected in series, and the series circuit composed of the third auxiliary drive pre-charging relay and the third auxiliary drive pre-charging resistor is connected in parallel with the third auxiliary drive relay, for controlling power distribution of the heat dissipation system and the upper-mounted lifting motor.

[0037] The sub-circuit where the third main drive motor, the fourth main drive motor and the upper-mounted lifting motor are located is provided with a DC / AC converter; and the sub-circuit where the heat dissipation system is located is provided with a DC / DC converter.

[0038] The auxiliary multi-in-one controller is mainly used for sharing the work load of the controller in the entire high-voltage system, and the control of the third and fourth main drive motors in the four main drive motors is shared to the auxiliary multi-in-one controller, so that the entire high-voltage system can be operated healthily and safely. The functions of each pre-charging relay and pre-charging resistor in the main multi-in-one controller are the same, and they are all used for safe operation of the protection circuit, limiting the size of the current during pre-charging, preventing current impact caused by too large voltage difference in the initial pre-charging stage, and pre-charging capacitor is used for making the voltage at the back end of the main drive relay rise smoothly during pre-charging, avoiding the influence of too large voltage instantaneous change on the circuit.

[0039] The single motor controller comprises an auxiliary single motor relay, an auxiliary single motor pre-charging relay, an auxiliary single motor pre-charging resistor and an auxiliary single motor pre-charging capacitor.

[0040] The auxiliary single motor relay, the auxiliary single motor pre-charging relay, the auxiliary single motor pre-charging resistor and the auxiliary single motor pre-charging capacitor are located on the sub-circuit of the auxiliary drive motor, the auxiliary single motor pre-charging relay and the auxiliary single motor pre-charging resistor are connected in series, and the series circuit composed of the auxiliary single motor pre-charging relay and the auxiliary single motor pre-charging resistor is connected in parallel with the auxiliary single motor relay, and the auxiliary single motor pre-charging capacitor is connected in parallel between the positive circuit and the negative circuit where the auxiliary single motor relay is located.

[0041] The sub-circuit where the auxiliary drive motor is located is provided with a DC / AC converter.

[0042] The generator controller comprises a generator pre-charging capacitor and a generator active discharge resistor.

[0043] The generator pre-charging capacitor and the generator active discharge resistor are located on the sub-circuit of the generator, the auxiliary single motor pre-charging capacitor and the motor active discharge resistor are both connected in parallel between the positive circuit and the negative circuit of the sub-circuit, and the auxiliary single motor pre-charging capacitor and the motor active discharge resistor are connected in parallel.

[0044] The sub-circuit where the generator is located is provided with a motor driver.

[0045] The function of the generator pre-charging capacitor is to prevent the voltage at the back end of the generator from changing too fast after the generator is under high voltage, and the function of the generator active discharge resistor is to quickly reduce the voltage at the back end of the generator to a safe value range after the generator is under low voltage.

[0046] Beneficial effects: The high-voltage architecture suitable for the extended-range wide-body vehicle can meet the demand of the required electrical appliances of the extended-range wide-body vehicle and facilitate control.

[0047] The four driving motors in the power system are directly connected with the transmission shaft through the reduction gearbox, and the problems of jerk and power interruption during gear shifting of the vehicle can be solved through torque and speed adjustment of the four driving motors, the problem of losing power during gear shifting of the wide-body vehicle on a slope is avoided, and the safety of the vehicle is improved.

[0048] One auxiliary driving motor is added, flexible distribution of power can be realized, the possibility of complete paralysis of the whole vehicle power system is reduced, and the reliability of the vehicle is improved. BRIEF DESCRIPTION OF DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by the provided drawings without creative labor for those skilled in the art.

[0050] Figure 1 It is a high-voltage system and electrical appliance connection frame diagram of the present application.

[0051] Figure 2 It is a high-voltage system circuit diagram of the present application.

[0052] Figure 3 It is a high-voltage system circuit diagram of the present application.

[0053] Figure 4 It is a high-voltage system circuit diagram of the present application.

[0054] Figure 5 It is a high-voltage system circuit diagram of the present application. DETAILED DESCRIPTION

[0055] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application, and obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0056] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0057] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature in the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them.

[0058] As shown in Figure 1 A high-voltage architecture suitable for extended-range wide-body vehicles, comprising a charging gun 1, a power battery 2, a battery water cooling unit 3, a battery BDU 4, a controller assembly 5, a brake air pump motor 6, a storage battery 7, a steering oil pump motor 8, an electric air conditioner 9, an electric heating PTC 10, a main drive motor assembly 11, a reduction box 12, a heat dissipation system 13, an upper-mounted lifting motor 14, an auxiliary drive motor 15 and a generator 16;

[0059] The charging gun 1, the power battery 2 and the battery water cooling unit 3 are respectively electrically connected with the battery BDU 4;

[0060] The battery BDU 4 is electrically connected with the controller assembly 5;

[0061] The controller assembly 5 is respectively electrically connected with the brake air pump motor 6, the storage battery 7, the steering oil pump motor 8, the electric air conditioner 9, the electric heating PTC 10, the main drive motor assembly 11, the heat dissipation system 13, the upper-mounted lifting motor 14, the auxiliary drive motor 15 and the generator 16;

[0062] The main drive motor assembly 11 comprises a first main drive motor 111, a second main drive motor 112, a third main drive motor 113 and a fourth main drive motor 114, and the first main drive motor 111, the second main drive motor 112, the third main drive motor 113 and the fourth main drive motor 114 are all power-connected with the reduction box 12.

[0063] The utility model discloses a high pressure framework that is set to adapt to the extended-range wide-body vehicle, four main drive motors in the power system are directly connected with the transmission shaft through the reduction box 12, and the problems of jerk and power interruption during gear shifting of the vehicle can be solved through torque and rotating speed adjustment of the four main drive motors, the problem of losing power during gear shifting of the wide-body vehicle on a slope is avoided, and the safety of the vehicle is improved. Meanwhile, the auxiliary drive motor 15 is added, flexible distribution of power is realized, the possibility of complete paralysis of the whole vehicle power system is reduced, and the reliability of the vehicle is improved.

[0064] The controller assembly 5 includes a main all-in-one controller 51, an auxiliary all-in-one controller 52, a single motor controller 53 and a generator controller 54.

[0065] The main all-in-one controller 51 is electrically connected with the brake air pump motor 6, the storage battery 7, the steering oil pump motor 8, the electric air conditioner 9, the electric heating PTC 10, the first main drive motor 111 and the second main drive motor 112 respectively.

[0066] The auxiliary all-in-one controller 52 is electrically connected with the third main drive motor 113, the fourth main drive motor 114, the heat dissipation system 13 and the upper-mounted lifting motor 14.

[0067] The single motor controller 53 and the auxiliary drive motor 15 are electrically connected respectively.

[0068] The generator controller 54 is electrically connected with the generator 16.

[0069] In order to avoid the difficulty in application caused by the power and interface limitation of a single controller, the controller assembly 5 is set as four separate controllers, the power and interface are adapted to the corresponding power-consuming equipment, the production cost is reduced, the auxiliary drive motor 15 and the generator 16 are controlled separately, and the stability of the whole high-voltage system is improved.

[0070] The charging gun 1 includes a first charging gun 101 and a second charging gun 102, and the first charging gun 101 and the second charging gun 102 charge the power battery 2 through the battery BDU 4 by connecting an external power grid.

[0071] By setting two charging guns 1, a single or multiple charging guns 1 can be selectively used for charging according to the current vehicle demand, and charging can still be performed when any one of the charging guns 1 has a problem, so that the vehicle can be normally used.

[0072] The battery water cooling unit 3 includes a first battery water cooling unit 31 and a second battery water cooling unit 32, and the first battery water cooling unit 31 and the second battery water cooling unit 32 directly communicate with the battery control system integrated in the battery BDU 4 and are used for heating or cooling the power battery 2 system.

[0073] Setting two battery water cooling units 3 can quickly heat or cool in extreme environments, guarantee the normal operation of the vehicle, keep the power battery 2 at an appropriate working temperature, and at the same time reduce the working pressure of a single battery water cooling unit 3, guaranteeing the long-term use of the equipment.

[0074] As shown in Figures 2 to 5 The battery BDU 4 includes a first charging positive relay 41, a first charging negative relay 42, a second charging positive relay 43, a second charging negative relay 44, a main positive relay 45, a main positive pre-charging relay 46, a main positive pre-charging resistor 47, and a main negative relay 48.

[0075] The first charging positive relay 41 and the first charging negative relay 42 are located on the high-voltage loop of the first charging gun 101, and are used to control the charging function of the first charging gun 101.

[0076] The second charging positive relay 43 and the second charging negative relay 44 are located on the high-voltage loop of the second charging gun 102, and are used to control the charging function of the second charging gun 102.

[0077] The main positive relay 45 and the main negative relay 48 are located on the main loop of the vehicle high-voltage system, and are the total switch for all electrical appliances of the vehicle. The main positive pre-charging relay 46 and the main positive pre-charging resistor 47 are connected in series, and the series circuit composed of the main positive pre-charging relay 46 and the main positive pre-charging resistor 47 is connected in parallel with the main positive relay 45.

[0078] Under the condition of meeting the high-voltage power-on, through the control program setting, the main negative relay 48 will be closed before the main positive relay 45 to protect the circuit safety. The main positive pre-charging relay 46 will be closed before the main positive relay 45, and after the voltage difference at both ends of the main positive relay 45 is less than 5V, the main positive pre-charging relay 46 is disconnected, and the main positive relay 45 is closed to realize the power-on of the main loop. The main positive pre-charging resistor 47 limits the size of the current during pre-charging, preventing current shock caused by excessive voltage difference in the early stage of pre-charging.

[0079] The main multi-in-one controller 51 includes a first auxiliary drive relay 511, a first auxiliary drive pre-charging relay 512, a first auxiliary drive pre-charging resistor 513, a second auxiliary drive relay 514, a second auxiliary drive pre-charging relay 515, a second auxiliary drive pre-charging resistor 516, a PTC relay 517, a first main drive relay 518, a first main drive pre-charging relay 519, a first main drive pre-charging resistor 520, and a first main drive pre-charging capacitor 5201.

[0080] The first auxiliary drive relay 511, the first auxiliary drive pre-charging relay 512 and the first auxiliary drive pre-charging resistor 513 are located on the sub-circuit of the brake air pump motor 6 and the storage battery 7, the first auxiliary drive pre-charging relay 512 and the first auxiliary drive pre-charging resistor 513 are connected in series, and the series circuit composed of the first auxiliary drive pre-charging relay 512 and the first auxiliary drive pre-charging resistor 513 is connected in parallel with the first auxiliary drive relay 511, for controlling the power distribution of the brake air pump motor 6 and the storage battery 7.

[0081] The second auxiliary drive relay 514, the second auxiliary drive pre-charging relay 515 and the second auxiliary drive pre-charging resistor 516 are located on the sub-circuit of the steering oil pump motor 8 and the electric air conditioner 9, the second auxiliary drive pre-charging relay 515 and the second auxiliary drive pre-charging resistor 516 are connected in series, and the series circuit composed of the second auxiliary drive pre-charging relay 515 and the second auxiliary drive pre-charging resistor 516 is connected in parallel with the second auxiliary drive relay 514, for controlling the power distribution of the steering oil pump motor 8 and the electric air conditioner 9.

[0082] The PTC relay 517 is located on the sub-circuit of the electric heating PTC 10.

[0083] The first main drive relay 518, the first main drive pre-charging relay 519, the first main drive pre-charging resistor 520 and the first main drive pre-charging capacitor 5201 are located on the sub-circuit of the first main drive motor 111 and the second main drive motor 112, the first main drive pre-charging relay 519 and the first main drive pre-charging resistor 520 are connected in series, and the series circuit composed of the first main drive pre-charging relay 519 and the first main drive pre-charging resistor 520 is connected in parallel with the first main drive relay 518, and the first main pre-charging capacitor is connected in parallel between the positive circuit and the negative circuit where the first main drive relay 518 is located.

[0084] DC / AC converters are arranged on the sub-circuit where the brake air pump motor 6, the steering oil pump motor 8, the first main drive motor 111 and the second main drive motor 112 are located; and a DC / DC converter is arranged on the sub-circuit where the storage battery 7 is located.

[0085] Each pre-charging relay and pre-charging resistor in the main multi-in-one controller 51 is connected before the main circuit relay is connected, so as to protect the circuit from the damage caused by the current impact on the electrical appliances; each DC / DC converter is used to convert high-voltage current into low-voltage current, so as to adapt to the normal work of the electrical appliances, and the DC / AC converter is used to convert direct current into alternating current for normal use of the electrical appliances; and each converter reports the state in real time during the working process, so as to facilitate the operator to understand the current vehicle state.

[0086] The auxiliary multi-combined controller 52 comprises a second main drive relay 521, a second main drive pre-charging relay 522, a second main drive pre-charging resistor 523, a second main drive pre-charging capacitor 524, a third auxiliary drive relay 525, a third auxiliary drive pre-charging relay 526 and a third auxiliary drive pre-charging resistor 527;

[0087] The second main drive relay 521, the second main drive pre-charging relay 522, the second main drive pre-charging resistor 523 and the second main drive pre-charging capacitor 524 are located on the sub-circuit of the third main drive motor 113 and the fourth main drive motor 114, the second main drive pre-charging relay 522 and the second main drive pre-charging resistor 523 are connected in series, and the series circuit composed of the second main drive pre-charging relay 522 and the second main drive pre-charging resistor 523 is connected in parallel with the second main drive relay 521, and the second main pre-charging capacitor is connected in parallel between the positive circuit and the negative circuit where the second main drive relay 521 is located.

[0088] The third auxiliary drive relay 525, the third auxiliary drive pre-charging relay 526 and the third auxiliary drive pre-charging resistor 527 are located on the sub-circuit of the heat dissipation system 13 and the upper-mounted lifting motor 14, the third auxiliary drive pre-charging relay 526 and the third auxiliary drive pre-charging resistor 527 are connected in series, and the series circuit composed of the third auxiliary drive pre-charging relay 526 and the third auxiliary drive pre-charging resistor 527 is connected in parallel with the third auxiliary drive relay 525, for controlling power distribution of the heat dissipation system 13 and the upper-mounted lifting motor 14.

[0089] The sub-circuit where the third main drive motor 113, the fourth main drive motor 114 and the upper-mounted lifting motor 14 are located is provided with a DC / AC converter; and the sub-circuit where the heat dissipation system 13 is located is provided with a DC / DC converter.

[0090] The auxiliary multi-combined controller 52 is mainly used for sharing the work load of the controller in the entire high-voltage system, and shares the control of the third and fourth main drive motors 114 in the four main drive motors to the auxiliary multi-combined controller 52, so that the entire high-voltage system can run healthily and safely, each pre-charging relay and pre-charging resistor has the same effect as in the main multi-combined controller 51, and all are for safe operation of the protection circuit, limiting the size of the current during pre-charging, preventing current impact caused by too large voltage difference in the initial pre-charging period, and the pre-charging capacitor functions to make the voltage at the back end of the main drive relay rise smoothly during pre-charging, avoiding the influence of too large voltage instantaneous change on the circuit.

[0091] The single motor controller 53 comprises an auxiliary single motor relay 531, an auxiliary single motor pre-charging relay 532, an auxiliary single motor pre-charging resistor 533 and an auxiliary single motor pre-charging capacitor 534;

[0092] The auxiliary single-motor relay 531, the auxiliary single-motor pre-charging relay 532, the auxiliary single-motor pre-charging resistor 533 and the auxiliary single-motor pre-charging capacitor 534 are located on the sub-circuit of the auxiliary drive motor 15, the auxiliary single-motor pre-charging relay 532 and the auxiliary single-motor pre-charging resistor 533 are connected in series, the series circuit composed of the auxiliary single-motor pre-charging relay 532 and the auxiliary single-motor pre-charging resistor 533 is connected in parallel with the auxiliary single-motor relay 531, and the auxiliary single-motor pre-charging capacitor 534 is connected in parallel between the positive circuit and the negative circuit of the auxiliary single-motor relay 531.

[0093] The sub-circuit of the auxiliary drive motor 15 is provided with a DC / AC converter.

[0094] The generator pre-charging capacitor 541 and the generator active discharging resistor 542 are located on the sub-circuit of the generator 16, the auxiliary single-motor pre-charging capacitor 534 and the motor active discharging resistor are connected in parallel between the positive circuit and the negative circuit of the sub-circuit, and the auxiliary single-motor pre-charging capacitor 534 is connected in parallel with the motor active discharging resistor.

[0095] The sub-circuit of the auxiliary drive motor 15 is provided with a DC / AC converter.

[0096] The sub-circuit of the auxiliary drive motor 15 is provided with a DC / AC converter.

[0097] The function of the generator pre-charging capacitor 541 is to prevent the voltage at the back end of the generator 16 from changing too fast after the high voltage of the generator 16, and the function of the generator active discharging resistor 542 is to rapidly reduce the voltage at the back end of the generator 16 to a safe value range after the low voltage of the generator 16.

[0098] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed by the embodiments, the description is relatively simple because it corresponds to the method disclosed by the embodiments. The relevant parts can be referred to the description of the method.

[0099] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A high-voltage architecture suitable for range-extended wide-body vehicles, characterized in that: It includes charging gun (1), power battery (2), battery water cooling unit (3), battery BDU (4), controller assembly (5), brake air pump motor (6), battery (7), steering oil pump motor (8), electric air conditioner (9), electric heating PTC (10), main drive motor assembly (11), reduction box (12), heat dissipation system (13), upper-mounted lifting motor (14), auxiliary drive motor (15) and generator (16); The charging gun (1), power battery (2) and battery water cooling unit (3) are respectively connected with the battery BDU (4); The battery BDU (4) is connected with the controller assembly (5); The controller assembly (5) is respectively connected with the brake air pump motor (6), battery (7), steering oil pump motor (8), electric air conditioner (9), electric heating PTC (10), main drive motor assembly (11), heat dissipation system (13), upper-mounted lifting motor (14), auxiliary drive motor (15) and generator (16); The main drive motor assembly (11) includes first main drive motor (111), second main drive motor (112), third main drive motor (113) and fourth main drive motor (114), and the first main drive motor (111), second main drive motor (112), third main drive motor (113) and fourth main drive motor (114) are all connected with the reduction box (12).

2. The high pressure architecture suitable for use in extended range wide body aircraft as claimed in claim 1, wherein: The controller assembly (5) includes main multi-in-one controller (51), auxiliary multi-in-one controller (52), single motor controller (53) and generator controller (54); The main multi-in-one controller (51) is respectively connected with the brake air pump motor (6), battery (7), steering oil pump motor (8), electric air conditioner (9), electric heating PTC (10), first main drive motor (111) and second main drive motor (112); The auxiliary multi-in-one controller (52) is connected with the third main drive motor (113), fourth main drive motor (114), heat dissipation system (13) and upper-mounted lifting motor (14); The single motor controller (53) and auxiliary drive motor (15) are respectively connected; The generator controller (54) is connected with the generator (16).

3. The high pressure architecture suitable for use in extended range wide body aircraft as claimed in claim 1, wherein: The charging gun (1) includes first charging gun (101) and second charging gun (102), and the first charging gun (101) and second charging gun (102) are connected with external power grid through the battery BDU (4) to charge the power battery (2).

4. The high pressure architecture suitable for use in extended range wide body aircraft as claimed in claim 1, wherein: The battery water cooling unit (3) includes first battery water cooling unit (31) and second battery water cooling unit (32), and the first battery water cooling unit (31) and second battery water cooling unit (32) are directly communicated with the battery control system integrated in the battery BDU (4) to heat or cool the power battery (2) system.

5. The high pressure architecture suitable for use in extended range wide body aircraft as claimed in claim 3, wherein: The battery BDU (4) comprises a first charging positive relay (41), a first charging negative relay (42), a second charging positive relay (43), a second charging negative relay (44), a main positive relay (45), a main positive pre-charging relay (46), a main positive pre-charging resistor (47), a main negative relay (48); The first charging positive relay (41) and the first charging negative relay (42) are located on the high-voltage loop of the first charging gun (101) and are used for controlling the charging function of the first charging gun (101); The second charging positive relay (43) and the second charging negative relay (44) are located on the high-voltage loop of the second charging gun (102) and are used for controlling the charging function of the second charging gun (102); The main positive relay (45) and the main negative relay (48) are located on the main loop of the whole vehicle high-voltage system and are the total switch of all electric appliances of the vehicle, the main positive pre-charging relay (46) and the main positive pre-charging resistor (47) are connected in series, and the series circuit composed of the main positive pre-charging relay (46) and the main positive pre-charging resistor (47) is connected in parallel with the main positive relay (45).

6. The high pressure architecture suitable for use in extended range wide body aircraft as claimed in claim 2, wherein: The main multi-in-one controller (51) comprises a first auxiliary drive relay (511), a first auxiliary drive pre-charging relay (512), a first auxiliary drive pre-charging resistor (513), a second auxiliary drive relay (514), a second auxiliary drive pre-charging relay (515), a second auxiliary drive pre-charging resistor (516), a PTC relay (517), a first main drive relay (518), a first main drive pre-charging relay (519), a first main drive pre-charging resistor (520), and a first main drive pre-charging capacitor (5201); The first auxiliary drive pre-charging relay (512) and the first auxiliary drive pre-charging resistor (513) are connected in series, and the series circuit composed of the first auxiliary drive pre-charging relay (512) and the first auxiliary drive pre-charging resistor (513) is connected in parallel with the first auxiliary drive relay (511), which is used for controlling the power distribution of the brake air pump motor (6) and the battery (7); The second auxiliary drive pre-charging relay (515) and the second auxiliary drive pre-charging resistor (516) are connected in series, and the series circuit composed of the second auxiliary drive pre-charging relay (515) and the second auxiliary drive pre-charging resistor (516) is connected in parallel with the second auxiliary drive relay (514), which is used for controlling the power distribution of the steering oil pump motor (8) and the electric air conditioner (9); The PTC relay (517) is located on the sub-loop of the electric heating PTC (10). The first main drive relay (518), the first main drive pre-charging relay (519), the first main drive pre-charging resistor (520) and the first main drive pre-charging capacitor (5201) are located on the sub-circuit of the first main drive motor (111) and the second main drive motor (112), the first main drive pre-charging relay (519) and the first main drive pre-charging resistor (520) are connected in series, and the series circuit composed of the first main drive pre-charging relay (519) and the first main drive pre-charging resistor (520) is connected in parallel with the first main drive relay (518), and the first main pre-charging capacitor is connected in parallel between the positive circuit and the negative circuit where the first main drive relay (518) is located. The sub-circuit where the brake air pump motor (6), the steering oil pump motor (8), the first main drive motor (111) and the second main drive motor (112) are located is provided with a DC / AC converter; the sub-circuit where the storage battery (7) is located is provided with a DC / DC converter.

7. The high pressure architecture suitable for use in extended range wide body aircraft as claimed in claim 2, wherein: The auxiliary multi-in-one controller (52) comprises a second main drive relay (521), a second main drive pre-charging relay (522), a second main drive pre-charging resistor (523), a second main drive pre-charging capacitor (524), a third auxiliary drive relay (525), a third auxiliary drive pre-charging relay (526) and a third auxiliary drive pre-charging resistor (527); The second main drive relay (521), the second main drive pre-charging relay (522), the second main drive pre-charging resistor (523) and the second main drive pre-charging capacitor (524) are located on the sub-circuit of the third main drive motor (113) and the fourth main drive motor (114), the second main drive pre-charging relay (522) and the second main drive pre-charging resistor (523) are connected in series, and the series circuit composed of the second main drive pre-charging relay (522) and the second main drive pre-charging resistor (523) is connected in parallel with the second main drive relay (521), and the second main pre-charging capacitor is connected in parallel between the positive circuit and the negative circuit where the second main drive relay (521) is located. The third auxiliary drive relay (525), the third auxiliary drive pre-charging relay (526) and the third auxiliary drive pre-charging resistor (527) are located on the sub-circuit of the heat dissipation system (13) and the upper-mounted lifting motor (14), the third auxiliary drive pre-charging relay (526) and the third auxiliary drive pre-charging resistor (527) are connected in series, and the series circuit composed of the third auxiliary drive pre-charging relay (526) and the third auxiliary drive pre-charging resistor (527) is connected in parallel with the third auxiliary drive relay (525), for controlling power distribution of the heat dissipation system (13) and the upper-mounted lifting motor (14); The sub-circuit where the third main drive motor (113), the fourth main drive motor (114) and the upper-mounted lifting motor (14) are located is provided with a DC / AC converter; the sub-circuit where the heat dissipation system (13) is located is provided with a DC / DC converter.

8. The high pressure architecture suitable for use in extended range wide body aircraft as claimed in claim 2, wherein: The single motor controller (53) comprises an auxiliary single motor relay (531), an auxiliary single motor pre-charging relay (532), an auxiliary single motor pre-charging resistor (533) and an auxiliary single motor pre-charging capacitor (534); The auxiliary single-motor relay (531), the auxiliary single-motor pre-charging relay (532), the auxiliary single-motor pre-charging resistor (533) and the auxiliary single-motor pre-charging capacitor (534) are located on the sub-circuit of the auxiliary drive motor (15), the auxiliary single-motor pre-charging relay (532) and the auxiliary single-motor pre-charging resistor (533) are connected in series, the series circuit composed of the auxiliary single-motor pre-charging relay (532) and the auxiliary single-motor pre-charging resistor (533) is connected in parallel with the auxiliary single-motor relay (531), and the auxiliary single-motor pre-charging capacitor (534) is connected in parallel between the positive circuit and the negative circuit of the sub-circuit where the auxiliary single-motor relay (531) is located. The sub-circuit where the auxiliary drive motor (15) is located is provided with a DC / AC converter.

9. The high pressure architecture suitable for use in extended range wide body aircraft as claimed in claim 2, wherein: The generator controller (54) comprises a generator pre-charging capacitor (541) and a generator active discharging resistor (542); The generator pre-charging capacitor (541) and the generator active discharging resistor (542) are located on the sub-circuit of the generator (16), the auxiliary single-motor pre-charging capacitor (534) and the motor active discharging resistor are connected in parallel between the positive circuit and the negative circuit of the sub-circuit, and the auxiliary single-motor pre-charging capacitor (534) is connected in parallel with the motor active discharging resistor. The sub-circuit where the generator (16) is located is provided with a motor driver.

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