CN110733492A

CN110733492A - Intelligent power unit, control method thereof and hybrid vehicle

Info

Publication number: CN110733492A
Application number: CN201911085104.6A
Authority: CN
Inventors: 张志刚; 易善伟; 翟兆岩; 张静; 翟廷科
Original assignee: Zhengzhou Foguang Power Generation Equipment Co Ltd
Current assignee: Zhengzhou Foguang Power Generation Equipment Co Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-01-31
Anticipated expiration: 2039-11-08
Also published as: CN110733492B

Abstract

The invention discloses an intelligent power unit, an intelligent power unit control method and a hybrid vehicle. This intelligence power pack is used for hybrid vehicle, includes: the intelligent power unit comprises an engine module, a generator module and an intelligent power unit controller, wherein the engine module comprises an engine and an engine controller, and the generator module comprises a generator and a generator controller; the intelligent power unit controller is configured to acquire the state of the hybrid vehicle and configure the intelligent power unit to work in a power generation mode, a power consumption mode and a starting mode according to the acquired state of the hybrid vehicle. The intelligent power unit has the advantages that the intelligentization of the power unit is realized, the intelligent power unit has multiple working modes, and the intelligent power unit can adapt to actual working conditions and environmental temperature. The intelligent control system has the outstanding advantages of intelligence, independent control, high reliability, high efficiency and the like.

Description

Intelligent power unit, control method thereof and hybrid vehicle

Technical Field

The invention relates to the technical field of new energy automobiles, in particular to intelligent power units, a control method thereof and a hybrid vehicle.

Background

At present, because the global warming, the aggravation of the atmospheric pollution and other problems are increasingly serious, has paid more attention to the research and development of the electric automobile, a penetrated heavy-duty electric automobile chassis is provided with a power battery as a functional unit, the size of the power battery needs to be larger in order to meet the power performance of the chassis due to the limitation of the prior battery technology, in addition, the service life of the power battery is particularly influenced by the high-power output of the power battery, when the single power supply mode is adopted, the cost of power supply is higher, and the charging time is long, therefore, the hybrid electric automobile tends to be the great trend of the design of the electric automobile, the conventional hybrid electric automobile chassis adopts a power supply mode combining multiple modes, and only performs pure power supply, and the provided power unit has the problems of single function , poor interchangeability and universality, poor environmental adaptability, poor reliability and the like.

Therefore, how to optimize the power unit and improve the interchangeability, the universality and the reliability thereof becomes a technical problem to be solved urgently and a focus of research all the time by the technical personnel in the field.

Disclosure of Invention

In order to solve the problems of poor interchangeability and universality, poor environment adaptability, poor reliability and the like of the power unit function unit of the conventional electric automobile, the invention innovatively provides intelligent power units which are used for a hybrid power vehicle and comprise an engine module, a generator module and an intelligent power unit controller, wherein the engine module comprises an engine and an engine controller, and the generator module comprises a generator and a generator controller;

the intelligent power unit controller is configured to acquire the state of the hybrid vehicle and configure the intelligent power unit to operate in of the following three modes according to the acquired state of the hybrid vehicle:

(1) the power generation mode is used for enabling the intelligent power unit to work as a generator set to provide power for the vehicle when the hybrid vehicle is detected to be in a normal running state, wherein the engine provides source power for the generator to drag the generator to generate power;

(2) the power consumption mode is used for enabling the intelligent power unit to act as a power consumption unit to absorb power outwards when the hybrid power vehicle is detected to be braked, so that the electric braking power of the vehicle is improved, and the mechanical braking is reduced, wherein the function of the generator is converted into the motor and is used for consuming the electric energy absorbed by the vehicle, converting the electric energy into the mechanical energy and inputting the mechanical energy to the engine, and the engine absorbs the energy output by the motor;

(3) and a start mode that causes the engine to be dragged by the driving characteristics of the generator to effect a start of the engine when the state of the hybrid vehicle is detected as vehicle start.

Based on the technical scheme, the invention provides modularized intelligent power units, which can automatically adjust the working mode, adapt to the actual working condition and have interchangeability and universality.

, when the intelligent power unit is operating in the generating mode, the output power of the intelligent power unit is controlled by operating in a single point constant power mode, operating along a minimum fuel consumption curve, or a combination thereof.

Based on the improved technical scheme, the power unit has the outstanding advantages of low emission and oil consumption, low requirements on battery output capacity and power and the like, and is favorable for prolonging the service life of the battery and selecting the battery with lower power.

further includes a heat sink for the engine and/or generator.

Based on the improved technical scheme, the invention can improve the reliability and the environment adaptability of the power unit and realize the reliable supply of the energy of the whole vehicle. The independently controlled heat dissipation system can ensure the heat balance requirement of the power unit and improve the environment adaptability.

, the intelligent power unit controller is further configured to detect the operating status of each component of the intelligent power unit controller and adjust the operating status of the intelligent power unit according to the operating status of each component, wherein the intelligent power unit is enabled to perform derated output when it is detected that some components are faulty and the intelligent power unit is unable to output rated power normally.

Based on the improved technical scheme, the invention has a self-protection function. The fault can be automatically detected and the working state can be adjusted. On the premise of ensuring the system safety, the output power as large as possible can be provided, the normal work of the power system is ensured, and the reliability of the intelligent power unit is improved.

, the intelligent power unit controller is further configured to stop derated output upon detection that the vehicle is in a particular operating condition.

Based on the improved technical scheme, the invention can remove the output limit value when the vehicle is in a special working condition, ensure enough output power and adapt to emergency.

In order to achieve the technical purpose, the invention also discloses intelligent power unit control methods, which are applied to the intelligent power unit, wherein the intelligent power unit works in a power generation mode, and the method comprises the following steps:

determining target power to be output of the intelligent power unit;

determining the output power of the generator according to the target power;

calculating the output power of the engine according to the output power of the generator and the transmission efficiency of the engine and the generator; and

determining the engine speed and torque corresponding to the calculated output power of the engine according to the universal characteristic curve of the engine,

the power output of the intelligent power unit is realized through the coordinated control of the engine and the generator, and the expected output power requirement is met.

Based on the technical scheme, the invention can automatically adjust the rotating speed and the torque of the engine according to the target output power, has good universality and can adapt to the actual working condition.

, determining the output power of the generator based on the target power further includes:

and dynamically adjusting the output power of the generator according to the target power and the actual output power of the intelligent power unit.

Based on the improved technical scheme, the power of the generator can be dynamically adjusted according to the actual output power, the power requirement of a power system is met, and reliable supply is realized.

In order to achieve the technical purpose, the invention also discloses intelligent power unit control methods, which are applied to the intelligent power unit, wherein the intelligent power unit works in a power consumption mode, and the method comprises the following steps:

predicting the power to be absorbed of the intelligent power unit according to the acquired running data of the vehicle;

determining working condition parameters of the engine working under a braking condition according to the power to be absorbed; and

and performing coordination control on the engine and the generator according to working condition parameters to realize power consumption control of the intelligent power unit.

Based on the technical scheme, the intelligent power unit can absorb the feedback energy when the power battery has sufficient electric quantity and cannot absorb the feedback energy, so that the electric brake has the greatest effect. The problem that the braking capacity is reduced or even the brake fails due to long-time braking heating of a mechanical brake or a hydraulic brake is avoided as much as possible.

In order to achieve the technical purpose, the invention also discloses intelligent power unit control methods, which are applied to the intelligent power unit, wherein the intelligent power unit works in a starting mode, and the method comprises the following steps:

determining the control quantity of the generator according to the starting target rotating speed of the engine;

running the generator in a motor mode, dragging the engine to start,

wherein, the control quantity of the generator is adjusted by a PI rotating speed adjusting controller according to the actual rotating speed of the engine.

Based on the technical scheme, the starter can be omitted, the requirement for light weight is met, and the engine is dragged by using the driving characteristic of the generator to start the engine. Compared with the traditional starter, the dragging power of the generator is much larger, the engine can be dragged to a sufficient rotating speed, and the low-temperature starting performance of the engine is greatly improved. The starting speed is higher, the success rate is higher, and the reliability is improved.

In order to achieve the technical purpose, the invention also discloses hybrid vehicles which comprise or more intelligent power units, an

And a coordination controller communicatively coupled to each of the intelligent power unit controllers comprised by the or the plurality of intelligent power units for obtaining various operating state parameters of the hybrid vehicle and providing some or all of these parameters to the intelligent power unit controllers.

Based on the technical scheme, the vehicle running parameters can be transmitted to or more intelligent power units through the coordination controller, and the control is more efficient.

, wherein the or more intelligent power units includes at least two intelligent power units and the coordinated controller is further configured to coordinate control of the intelligent power unit controllers based on the load conditions and operating condition parameters of the hybrid vehicle.

Based on the technical scheme, the load condition and the working condition parameters of the hybrid power vehicle can be comprehensively considered, the power distribution and coordination control of the intelligent power units are realized, and the control interface is simple and efficient.

The invention has the beneficial effects that: the intelligent power unit provided by the invention can improve the reliability, interchangeability, universality and environment adaptability of the intelligent power unit. The overall layout of the power supply system of the electric automobile can be optimized, the load condition and the working condition parameters of the hybrid power vehicle can be comprehensively considered, the power distribution and the coordination control of a plurality of intelligent power units are realized, and the control interface is simple and efficient.

Drawings

Fig. 1 is a block diagram of kinds of intelligent power units according to the embodiment of the invention.

Fig. 2 is a schematic diagram illustrating the energy flow direction of intelligent power unit in generating modes according to the embodiment of the invention.

Fig. 3 is a schematic diagram illustrating the energy flow direction of power consumption modes of the intelligent power unit according to the embodiment of the invention.

Fig. 4 is a schematic diagram illustrating the energy flow direction of start-up modes of the intelligent power unit according to the embodiment of the invention.

Fig. 5 is a flowchart of a control method in kinds of intelligent power unit power generation modes according to an embodiment of the present invention.

FIG. 6 is a flow chart of a control method under power consumption modes of the intelligent power unit according to the embodiment of the invention.

FIG. 7 is a flow chart of a control method for intelligent power unit start modes according to an embodiment of the invention.

Fig. 8 is a block diagram showing the construction of hybrid vehicles according to the embodiment of the present invention.

Detailed Description

The kinds of intelligent power units, the control method thereof and the hybrid vehicle according to the invention will be explained and explained in detail with reference to the drawings in the specification.

Referring to FIG. 1, a block diagram of an exemplary intelligent power unit 1 in which embodiments of the present invention may be implemented is shown. The intelligent power unit 1 may include an engine module 11, a generator module 12, and an intelligent power unit controller 13, wherein the engine module 11 includes an engine 112 and an engine controller 111, and the generator module 12 includes a generator 122 and a generator controller 121. The dashed lines in fig. 1 represent bus traffic, control data flow, and the solid lines power flow. The intelligent power unit controller 13, the generator controller 121, and the engine controller 111 are connected by a CAN bus.

In actual operation, the intelligent power unit controller 13 acquires a parameter indicating the state of the hybrid vehicle mounted thereon. When the state of the hybrid vehicle is detected as normal running, the intelligent power unit 1 works in a power generation mode, so that the intelligent power unit 1 works as a generator set to provide power for the vehicle. The engine 112 is controlled to provide source power for the generator 122, dragging the generator 122 to generate electricity. When the hybrid vehicle is detected to be in a vehicle braking state, the intelligent power unit 1 works in a power consumption mode, so that the intelligent power unit 1 acts as a power consumption unit to absorb power outwards. The function of the generator 122 is controlled to be converted into a motor for consuming the electric energy absorbed from the vehicle, converting the electric energy into mechanical energy and inputting the mechanical energy to the engine 112, and the engine 112 absorbs the energy output from the motor. Therefore, the electric braking power of the vehicle can be improved, and the mechanical braking can be reduced. When the hybrid vehicle state is detected as vehicle start, the intelligent power unit 1 operates in the start mode, and controls the generator 122 to drag the engine 112 by using the driving characteristics to start the engine 112.

In order to meet the power consumption requirement of a heavy hybrid electric vehicle and reduce the energy supply cost, a power unit and a power battery 4 (refer to fig. 8) are used as energy sources to provide power for the whole vehicle 20, however, when the power unit is unreasonably designed, the function unit is provided, and the working state cannot adapt to the actual working condition of the vehicle.

The parameters of the state of the hybrid vehicle may include, for example, but are not limited to, operating state parameters, power cell voltage, output power of the power cell stack for a current set period of time, and temperature information of the power cells step forward, when the power cells 4 are low on capacity, the intelligent power unit 1 operates in a generating mode to supplement power to the power cells 4. preferably, the intelligent power unit 1 further includes a cabin, a high-resilience coupling, and a fuel tank. the engine module 11 includes a diesel engine, an intake system, and an exhaust system, wherein the intake system and the exhaust system support intake and exhaust operations during operation of the diesel engine, the generator controller 121 is connected to the generator 122 and the intelligent power unit controller 13, respectively, to communicate and control the operation of the generator 122.

, the intelligent cooling system comprises an engine cooling module and a generator cooling module, the heat dissipation equipment comprises an axial flow fan, a water pump and a cooling pipeline, the engine 112 cooling module receives a working temperature signal of the engine 112 when working, the engine cooling module controls the axial flow fan and the water pump to enable the engine 112 to work in a required working environment and maintain a good working condition, the generator cooling module receives a working temperature signal of the generator 122 when working, and the generator cooling module controls the axial flow fan to enable the generator 122 to work in the required working environment.

As shown in fig. 2, when the intelligent power unit controller 13 detects that the hybrid vehicle is in a normal running state or the power battery is low, the intelligent power unit controller 13 controls the intelligent power unit 1 to serve as a generator set to provide power for the vehicle, wherein the engine 112 provides source power for the generator 122, and the generator 122 is dragged to generate power. The direction of the arrows in fig. 2 is the direction of energy flow. The generator 122 outputs electric energy to a high-voltage bus of the entire vehicle 20, converts the electric energy into mechanical energy through the motor and the inverter 5, and outputs the mechanical energy to the tire 7 through the transmission 6. While the excess electrical energy is used to power the vehicle onboard equipment 2, the accessory system 3 and the power battery 4. The energy supply mode that multiple mode combined together is favorable to reducing the energy supply cost, prolongs battery life, improves vehicle dynamic performance.

As shown in fig. 3, when the intelligent power unit controller 13 detects that the hybrid vehicle is in a vehicle braking state, the intelligent power unit 1 acts as a power consumption unit to absorb power to the outside, thereby increasing the electric braking power of the vehicle and reducing mechanical braking. This is particularly suitable for situations where the power battery is already fully charged. The direction of the arrows in fig. 3 is the direction of energy flow. The tires 7 transmit the mechanical energy to the transmission 6, and the transmission 6 converts the mechanical energy into electric energy through the motor and the inverter 5 and outputs the electric energy to the power battery 4, the accessory system 3 and the vehicle onboard equipment 2. While excess electrical energy is transferred to the generator 122. The generator 122 functions as a motor, consumes the absorbed electric energy, converts the electric energy into mechanical energy and inputs the mechanical energy to the engine 112, and the engine 112 absorbs the energy output by the generator 122. The intelligent power unit 1 is used as a power consumption unit, consumes partial braking energy, can reduce mechanical braking heat load, and improves the long-slope braking safety.

As shown in fig. 4, when the intelligent power unit controller 13 detects that the state of the hybrid vehicle is a vehicle start, the generator 122 is caused to drag the engine 112 by the driving characteristics to effect a start of the engine 112. The direction of the arrows in fig. 4 is the direction of energy flow. The generator 122 operates in the starter mode 1221 to absorb the electric power provided by the power battery 4, and the engine 112 is dragged to start. After the engine 112 is started, the operating mode of the generator 122 is switched to the generator mode 1222, and the engine 112 drives the generator 122 to generate power. The intelligent power unit 1 cancels a starter in the traditional mode, and has a smaller volume. Compared with the traditional starter, the dragging power of the generator 122 is much larger, the engine 112 can be dragged to a sufficient rotating speed, and the low-temperature starting performance of the engine 112 is greatly improved.

The intelligent power unit 1 comprises intelligent power units which work in a single-point constant power mode, and intelligent power units which work along a lowest fuel consumption curve, wherein the intelligent power unit 1 which works in a single-point constant power mode (namely a switch mode) only stably works in a working point and a shutdown state with low fuel consumption and low emission, and the dynamic load of a vehicle is completely balanced by a power battery 4.

Preferably, the intelligent power unit controller 13 is further configured to: and detecting the working states of all parts of the intelligent power unit controller 13, and adjusting the working states of the intelligent power unit 1 according to the working states of all parts, wherein when part of the parts are detected to be in fault and the intelligent power unit 1 cannot normally output rated power, the intelligent power unit 1 can perform derating output. Preferably, the intelligent power unit 1 provides the output and the power consumption as large as possible according to the power output and the power consumption of the fault level limit power unit on the premise of ensuring the system safety. Preferably, when a power unit fails severely, the power unit controller will disable all functions of the power unit. Aiming at the high reliability requirement of the power unit, the invention realizes the reliable supply of the power supply of the whole vehicle 20 through the derating design and the functional designs such as software and hardware interlocking protection, system automatic error correction and the like.

, the intelligent power unit controller 13 is also configured to stop derating output when it is detected that the vehicle is in special condition, when the vehicle is in special condition, the intelligent power unit 1 needs to release part of the limit to ensure the reliable completion of the task, in this mode, if the intelligent power unit 1 has derating fault, the derating process is cancelled to recover normal output, preferably, the generator 122 controller 121 releases the set limit value such as temperature limit which affects the power output step to ensure that the intelligent power unit 1 can output enough power for a longer time, the invention improves the emergency capability of the intelligent power unit 1 through the system fault self-recovery function design, and realizes the reliable supply of the power of the whole vehicle 20.

The control logic of the output power of the intelligent power unit 1 is as follows: the output power of the generator 122 is determined based on the target power output of the intelligent power unit 1. The required output power of the engine 112 is calculated according to the generator 122 and the transmission efficiency, then the rotating speed and the torque of the engine 112 corresponding to the required output power are determined according to the universal characteristic curve of the engine 112, the power output of the intelligent power unit 1 is realized through the coordination control of the engine 112 and the generator 122, and the power requirement of a power system is met.

As shown in FIG. 5, the embodiment of the invention discloses kinds of intelligent power unit 1 control methods 100 applied to the intelligent power unit 1. the intelligent power unit 1 operates in a power generation mode, the method comprises a step S101 of determining a target power to be output by the intelligent power unit 1, a step S102 of determining the output power of a generator 122 according to the target power, preferably, determining the output power of the generator 122 according to the target power further comprises a step S103 of dynamically adjusting the output power of the generator 122 according to the target power and the actual output power of the intelligent power unit 1, a step S103 of calculating the output power of the engine 112 according to the output power of the generator 122 and the transmission efficiency of the engine 112 and the generator 122, and a step S104 of determining the rotating speed and the torque of the engine 112 corresponding to the calculated output power of the engine 112 according to the universal characteristic curve of the engine 112.

As shown in FIG. 6, the embodiment of the invention discloses control methods 200 for an intelligent power unit 1, which are applied to the intelligent power unit 1. the intelligent power unit 1 works in a power consumption mode, and the method comprises the steps of S201 predicting the power to be absorbed by the intelligent power unit 1 according to the acquired running data of the vehicle, S202 determining the working condition parameters of the engine 112 under the braking condition according to the power to be absorbed, and S203 performing coordinated control on the engine 112 and the generator 122 according to the working condition parameters to realize the power consumption control of the intelligent power unit 1. the conventional braking method is that the vehicle drives the rotor of the driving motor 11 to rotate, so that energy is fed back to the power bus while generating braking torque, and is used for charging the power battery 4, when the power battery 4 is sufficiently charged and cannot absorb the energy, electric braking can be normally not adopted, only mechanical braking force can be generated through mechanical braking, continuous braking is needed when the vehicle runs downhill, and the mechanical or hydraulic brake can absorb the maximum energy, and the mechanical braking loss can be reduced through the power battery 4.

As shown in FIG. 7, the embodiment of the invention discloses control methods 300 for an intelligent power unit 1, which are applied to the intelligent power unit 1. the intelligent power unit 1 works in a starting mode, the method comprises the steps of S301 determining the control quantity of a generator 122 according to the starting target rotating speed of an engine 112, S302 enabling the generator 122 to run in a motor mode and dragging the engine 112 to start, and S303 utilizing a PI rotating speed adjusting controller to adjust the control quantity of the generator 122 according to the actual rotating speed of the engine 112.

As shown in FIG. 8, an embodiment of the invention discloses hybrid vehicles, including or more of the above-mentioned intelligent power units 1, and a coordination controller 8 communicatively coupled to or more of the intelligent power units 1 including respective intelligent power unit controllers 13. each of or more of the intelligent power units may be independently powered according to power demand, or may be cooperatively powered in two sets in parallel.A power cable connection, CAN bus data connection port, is disposed on the power unit and connected to respective control and actuator elements of the entire vehicle 20. when the hybrid vehicle is installed in the hybrid vehicle, the coordination controller 8 communicates with the intelligent power unit 1 using CAN bus.the coordination controller 8 is used to obtain various operating state parameters of the hybrid vehicle and provide some or all of these parameters to the intelligent power unit controller 13. preferably, the hybrid vehicle includes at least two power units, the coordination controller 8 is further configured to coordinate the intelligent power unit controller 13 to control the intelligent power unit controller 13 according to load conditions and operating conditions of the hybrid vehicle, preferably, the intelligent power unit controller 13 controls the intelligent power unit controller 13 to control the heat dissipation fan via a heat dissipation fan output of a high voltage DC power unit, preferably, a heat dissipation fan controller 12. the intelligent power unit controller controls the heat dissipation fan via a heat dissipation fan, preferably, a heat dissipation fan controller 12, a heat dissipation fan controller, preferably, a heat dissipation fan controller 2, a heat dissipation fan controller.

Preferably, the coordination controller 8 has self-learning function, and can predict the power demand in periods later according to the chassis power demand and consumption situation in periods, and determine the power demand of the intelligent power unit 1 according to the predicted power demand and the state of the power battery 4, so as to maximize the working efficiency of the chassis power system and the power unit, and keep the power battery 4 in the optimal working state.

The intelligent power unit 1 is designed to be simple as much as possible in interface with the coordination controller 8, the interface is in the form of the power demand of the hybrid vehicle on the intelligent power unit 1 and the control request state of a special mode, the special mode comprises the condition that the request for supplying power by using equipment is higher than the safety of the equipment, such as special working conditions, the coordination controller 8 can comprehensively consider the power distribution and coordination control of a plurality of intelligent power units 1 on the hybrid vehicle according to the parameters of the power generation efficiency and the like of the intelligent power units 1, the change of the demands is totally converted into the power demand on a single intelligent power unit 1, and the control interface is simple and efficient.

The intelligent power unit has the advantages that the intelligentization of the power unit is realized, the intelligent power unit has multiple working modes, and the intelligent power unit can adapt to actual working conditions and environmental temperature. The intelligent control system has the outstanding advantages of intelligence, independent control, high reliability, high efficiency and the like.

In the description herein, references to the terms "this embodiment," " embodiments," " embodiments," "examples," "specific examples," or " examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least embodiments or examples of the invention.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and simplifications made in the spirit of the present invention are intended to be included in the scope of the present invention.

Claims

intelligent power unit for hybrid vehicle, comprising an engine module, a generator module and an intelligent power unit controller, wherein the engine module comprises an engine and an engine controller, and the generator module comprises a generator and a generator controller;

the intelligent power unit controller is configured to acquire the state of the hybrid vehicle and configure the intelligent power unit to operate in of the following three modes according to the acquired state of the hybrid vehicle:

(1) the intelligent power unit is used for supplying power to the vehicle when detecting that the hybrid vehicle is in a normal running state, wherein the engine supplies source power to the generator to drag the generator to generate power;

(2) the power consumption mode is used for enabling the intelligent power unit to act as a power consumption unit to absorb power outwards when the hybrid power vehicle is detected to be braked, so that the electric braking power of the vehicle is improved, and the mechanical braking is reduced, wherein the function of the generator is converted into the motor and is used for consuming the electric energy absorbed by the vehicle, converting the electric energy into the mechanical energy and inputting the mechanical energy to the engine, and the engine absorbs the energy output by the motor;

(3) and a start mode that causes the engine to be dragged by the driving characteristics of the generator to effect a start of the engine when the state of the hybrid vehicle is detected as vehicle start.
2. The intelligent power unit as set forth in claim 1, wherein the output power control mode of the intelligent power unit when the intelligent power unit is operating in the generating mode comprises: operating in a single point constant power mode, operating along a minimum fuel consumption curve, or a combination of the two.
3. The intelligent power unit as set forth in claim 1, further comprising: a heat sink for the engine and/or the generator.
4. The intelligent power unit of any of claims 1-3, wherein the intelligent power unit controller is further configured to detect an operating state of each component of the intelligent power unit controller and adjust the operating state of the intelligent power unit based on the operating state of each component, wherein the intelligent power unit is derated to output the rated power when a failure of a portion of the components is detected such that the intelligent power unit cannot normally output the rated power.
5. The intelligent power unit as set forth in claim 4, wherein the intelligent power unit controller is further configured to: and stopping the derated output when the vehicle is in the special working condition.
Intelligent Power Unit control method applied to the intelligent Power Unit of claims 1-5, wherein the intelligent Power Unit is operating in a Power Generation mode, the method comprising:

determining a target power to be output of the intelligent power unit;

determining the output power of the generator according to the target power;

calculating the output power of the engine according to the output power of the generator and the transmission efficiency of the engine and the generator; and

determining the engine speed and torque corresponding to the calculated output power of the engine according to the universal characteristic curve of the engine,

the power output of the intelligent power unit is realized through the coordinated control of the engine and the generator, and the expected output power requirement is met.
7. The method of claim 6, wherein said determining an output power of a generator from said target power further comprises:

and dynamically adjusting the output power of the generator according to the target power and the actual output power of the intelligent power unit.
8, Intelligent Power Unit control method applied to the intelligent Power Unit of claims 1-5, wherein the intelligent Power Unit is operating in a Power consumption mode, the method comprising:

predicting the power to be absorbed of the intelligent power unit according to the acquired running data of the vehicle;

determining working condition parameters of the engine working under the braking condition according to the power to be absorbed; and

and performing coordination control on the engine and the generator according to the working condition parameters to realize power consumption control of the intelligent power unit.
An intelligent power unit control method for use with the intelligent power unit as defined in claims 1-5, wherein the intelligent power unit is operated in a start-up mode, the method comprising:

determining the control quantity of the generator according to the starting target rotating speed of the engine;

running the generator in a motor mode, dragging the engine to start,

wherein, the control quantity of the generator is adjusted by a PI rotating speed adjusting controller according to the actual rotating speed of the engine.
10, A hybrid vehicle, comprising:

one or more intelligent power units according to any of the preceding claims 1-5, and

a coordinating controller communicatively coupled to each of the intelligent power unit controllers comprised by the plurality of intelligent power units for obtaining various operating state parameters of the hybrid vehicle and providing some or all of these parameters to the intelligent power unit controllers.
11. The hybrid vehicle of claim 11, wherein the or more intelligent power units include at least two of the intelligent power units, and the coordinated controller is further configured to coordinate control of the intelligent power unit controller based on load conditions and operating condition parameters of the hybrid vehicle.