CN103895641B - A kind of gas-electricity hybrid power coach whole-control system and control method thereof - Google Patents

A kind of gas-electricity hybrid power coach whole-control system and control method thereof Download PDF

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Publication number
CN103895641B
CN103895641B CN201410163722.9A CN201410163722A CN103895641B CN 103895641 B CN103895641 B CN 103895641B CN 201410163722 A CN201410163722 A CN 201410163722A CN 103895641 B CN103895641 B CN 103895641B
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control
electromotor
drive motor
motor
battery
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CN201410163722.9A
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CN103895641A (en
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张国忠
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西虎汽车工业有限公司
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00Control systems specially adapted for hybrid vehicles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
    • B60W30/18Propelling the vehicle
    • B60W30/18009Propelling the vehicle related to particular drive situations
    • B60W30/18109Braking
    • B60W30/18127Regenerative braking
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00Input parameters relating to a particular sub-units
    • B60W2510/08Electric propulsion units
    • B60W2510/087Temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00Input parameters relating to a particular sub-units
    • B60W2510/24Energy storage means
    • B60W2510/242Energy storage means for electrical energy
    • B60W2510/244Charge state
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00Input parameters relating to a particular sub-units
    • B60W2510/24Energy storage means
    • B60W2510/242Energy storage means for electrical energy
    • B60W2510/246Temperature

Abstract

The present invention relates to a kind of gas-electricity hybrid power coach whole-control system and control method thereof, this whole-control system includes entire car controller, battery means, high voltage distribution box, electric machine controller, drive motor, electromotor, BSG motor or ISG motor, decelerator, instrument mechanism, gear mechanism, arrestment mechanism, accelerator mechanism, electromotor and super capacitor;This electromotor mixes linkage with this drive motor, and this BSG motor drives and starts this electromotor;This electromotor is assemblied on the clutch end of this drive motor;This super capacitor connects this entire car controller by CAN。The passenger vehicle of the present invention with entire car controller be host node, based on high-speed CAN bus distributed power system control network, the information such as the temperature by comprehensive vehicle information, the SOC of battery, temperature, voltage, electric current and motor calculate the distribution of power of motor, and the driving and the braking energy feedback that carry out vehicle control;Thus the cornering ability of the best can be obtained under the permission of system。

Description

A kind of gas-electricity hybrid power coach whole-control system and control method thereof

Technical field

The present invention relates to a kind of whole-control system and control method thereof, particularly relate to a kind of gas-electricity hybrid power coach whole-control system and control method thereof。

Background technology

Plug-in hybrid passenger car is the complication system being made up of multiple subsystems, mainly include the dynamical systems such as electrokinetic cell, super capacitor, drive motor, electromotor, BSG starter (or ISG motor), change speed gear box, braking and other adnexa such as air-conditioning, power-assisted steering etc.。Each subsystem nearly all completes respective function and target by the control unit (ECU) of oneself。In order to meet the target of car load dynamic property, economy, safety and comfortableness, on the one hand must have intelligentized people's car interactive interface, on the other hand, each system must also coordination with one another, Optimized Matching。Therefore, electronic it is necessarily required to the entire car controller all parts to manage in electric automobile。

The electromotor of the whole-control system of existing gas-electricity hybrid power coach is assemblied on wheel hub or wheel shaft。Loss due to energy, export transmission to wheel shaft or wheel hub from the power of drive motor progressively to consume, and the rotating speed of wheel shaft or wheel hub is much lower relative to the clutch end rotating speed of drive motor, so also implying that the generating efficiency of the electromotor being assemblied in wheel shaft or wheel hub is low, energy recovery efficiency is low。

Summary of the invention

The present invention provides a kind of gas-electricity hybrid power coach whole-control system and control method thereof, with the problem that generating efficiency is low, energy recovery rate is low overcoming the whole-control system of existing gas-electricity hybrid power coach to exist。

The present invention adopts the following technical scheme that

A kind of gas-electricity hybrid power coach whole-control system, including entire car controller, battery means, high voltage distribution box, electric machine controller, drive motor, decelerator, electromotor, BSG motor (or ISG motor), instrument mechanism, gear mechanism, arrestment mechanism and accelerator mechanism;This instrument mechanism, battery means, electric machine controller connect this entire car controller respectively through CAN;This instrument mechanism, gear mechanism, arrestment mechanism and accelerator mechanism wire respectively connect this entire car controller;This electric machine controller is for controlling the operation of this drive motor, and this drive motor drives transmission passenger vehicle to advance by this decelerator;This electromotor mixes linkage with above-mentioned drive motor, and above-mentioned BSG motor (or ISG motor) is used for driving this electromotor of startup;Whole-control system also includes electromotor, dc-dc, accumulator and super capacitor, and this electromotor is connected with described high voltage distribution box by described electric machine controller, and this accumulator is connected with this high voltage distribution box by this dc-dc;This electromotor is assemblied on the clutch end of this drive motor, and this electromotor is used for converting kinetic energy into electric energy and is stored in this battery means;This super capacitor connects this entire car controller by CAN。

Further, above-mentioned whole-control system also includes air-conditioner controller and motor compressor, and this air-conditioner controller wire connects above-mentioned high voltage distribution box, and this air-conditioner controller is for controlling the operation of this motor compressor;Above-mentioned battery means is connected to charging inlet。

A kind of control method of gas-electricity hybrid power coach whole-control system, this control method uses above-mentioned gas-electricity hybrid power coach whole-control system, and this control method includes the following step being sequentially carried out:

A. key pushes " ON " shelves, passenger vehicle is entered system ready mode by dead ship condition, the fault of entire car controller detection self and battery means, high voltage distribution box, electric machine controller, drive motor, electromotor, BSG motor, instrument mechanism, gear mechanism, arrestment mechanism and accelerator mechanism;When fault having been detected, whole-control system enters troubleshooting pattern and carries out corresponding troubleshooting, stores DTC according to reference format, and is capable of standard fault codes and shows;It is absent from fault, then system initialization, initializes " Start " signal waiting driver afterwards;

B. key pushes " Start " shelves, and passenger vehicle is in driving states at any time;State according to battery means, drive motor and car load, the state of car load includes the factors such as the frictional force on car load and the gross weight of load-carrying, windage and ground, performance number X, this performance number X and the accelerator open degree of accelerator mechanism that entire car controller calculating passenger vehicle can export obtain passenger vehicle demand power value Y;The state of entire car controller detection battery means, if battery means is for excessively putting state, then reduces the output of passenger vehicle;If battery means did not have to put, then calculate the moment of torsion of drive motor according to the rotating speed of drive motor and demand power Y;

C. when starting to walk low speed, super capacitor powering to drive motor, only drive motor drives passenger vehicle walking;When passenger vehicle speed more than 18~24Km/h or super-capacitor voltage lower than 300V time, entire car controller detects the rotating speed of drive motor and electromotor automatically, and when drive motor and engine speed basic synchronization, electromotor incision drives;Now the power source of passenger vehicle is essentially from electromotor, and drive motor is in process auxiliary drive state;

D. when engine idle, car load speed are higher than 330V lower than 19Km/h and super-capacitor voltage, entire car controller controls engine misses by CAN interface, and car load is in pure electricity duty;When the undertension of super capacitor, by driven by engine electrical power generators, charge to super capacitor;

E. at passenger vehicle battery means electricity lower than the lower limit arranged, and car load speed lower than 19Km/h time, entire car controller automatically controlled engine rotating speed, and start BSG motor (or ISG motor) and generate electricity, battery means carries out electricity supplement, when electricity reaches the higher limit arranged, automatically terminate BSG motor (or ISG motor) generating state;

F., when entire car controller detects the brake signal of arrestment mechanism, calculate current braking power according to brake pedal aperture and battery status, and monitor the state of battery means;Drive motor braking moment has precedence over mechanical braking and first works, drive motor strengthens braking moment, make vehicle deceleration, when driver steps on downwards brake pedal to certain depth, mechanical braking just works, until vehicle parking, if battery means does not overcharge, then braking energy is converted into electric energy by electromotor in the scope (preferred drive motor rotating speed is in the scope of 400~1500rpm) that drive motor rotating speed is 300~1500rpm;If battery means is in the state of overcharging, then it is not charged;Calculate the braking torque of motor according to motor speed, be sent to electric machine controller, complete the once calculating of braking energy feedback。

From the above-mentioned description to present configuration, compared to the prior art, present invention have the advantage that the whole-control system of the present invention is to be assemblied on the clutch end of drive motor by electromotor, the clutch end rotating speed of drive motor is fast, generator power output is big, being conducive to the quick recovery of energy, energy recovery efficiency is high;Additionally, distributed power system that the control system of the present invention is host node with entire car controller, based on high-speed CAN bus controls network, by this network, the links of electrical vehicular power chain can be managed, coordinate and monitor by entire car controller, improve car load energy utilization efficiency, it is ensured that vehicle safety and reliability;It addition, the control system of the present invention can gather the drive demand of driver, and the integrated status according to battery manages vehicle power, it is ensured that the stable traveling of passenger vehicle and long time continuation of the journey, effectively protect the service life of battery means;Additionally, by according to speed and power demand conditions, it is achieved motor, engine system energy distribution, to realize the optimum control of energy, vehicle stops electromotor work and has arrived oil-saving effect when low cruise or idling stop;Finally, being calculated the distribution of power of motor by information such as the temperature of comprehensive vehicle information, the SOC of battery, temperature, voltage, electric current and motor, the driving and the braking energy feedback that carry out vehicle control;Thus the cornering ability of the best can be obtained under the permission of system。

Accompanying drawing explanation

Fig. 1 is structure distribution and the parts relationship figure of the control system of the present invention。

The operating mode that Fig. 2 is the entire car controller of the present invention divides and operating mode switching flow figure。

Fig. 3 is the driving policy control flow chart of the whole-control system of the present invention。

Fig. 4 is the braking energy feedback control flow chart of the whole-control system of the present invention。

Detailed description of the invention

The specific embodiment of the present invention is described with reference to the accompanying drawings。

With reference to Fig. 1, a kind of gas-electricity hybrid power coach whole-control system, including entire car controller, battery means, high voltage distribution box, electric machine controller, drive motor, decelerator, electromotor, BSG motor, instrument mechanism, gear mechanism, arrestment mechanism and accelerator mechanism;This instrument mechanism, battery means, electric machine controller connect this entire car controller respectively through CAN;The road conditions that the battery capacity of battery means is according to passenger vehicle predetermined paths are determined, road conditions are better, and climbing is few, then optional battery capacity is less, otherwise then needs high capacity cell;This instrument mechanism, gear mechanism, arrestment mechanism and accelerator mechanism wire respectively connect this entire car controller;This electric machine controller is for controlling the operation of this drive motor, and this drive motor drives transmission passenger vehicle to advance by this decelerator;This electromotor mixes linkage with above-mentioned drive motor, and above-mentioned BSG motor (or ISG motor) is used for driving this electromotor of startup;Whole-control system also includes electromotor, dc-dc, accumulator and super capacitor, this electromotor is connected with described high voltage distribution box by described electric machine controller, this electromotor is assemblied on the clutch end of this drive motor, and this electromotor is used for converting kinetic energy into electric energy and is stored in this battery means;This super capacitor connects this entire car controller by CAN。This accumulator is connected with this high voltage distribution box by this dc-dc;This accumulator is powered for conventional electricity consumption, and this routine electricity consumption includes the electricity consumption that passenger vehicle startup, car light, instrument and car door open and close, and can pass through external charging mode electric energy supplement when accumulator electric-quantity is used up。Additionally, as it is shown in figure 1, this charging mechanism also for electronic-controlled power steering, electronic power except mist and air compressor。

Further, above-mentioned whole-control system also includes air-conditioner controller and motor compressor, and this air-conditioner controller wire connects above-mentioned high voltage distribution box, and this air-conditioner controller is for controlling the operation of this motor compressor;Above-mentioned battery means is connected to charging inlet, directly can be charged for battery means by this charging inlet。

A kind of control method of gas-electricity hybrid power coach whole-control system, this control method uses above-mentioned gas-electricity hybrid power coach whole-control system, wherein, with reference to Fig. 2, the controlled load case of car load is divided in systems: parking, system driving model ready, pre-, forward mode, idling mode, reverse mode, braking mode, energy deficiency pattern, fault mode and charge mode。The control method of the present invention includes the following step being sequentially carried out:

A. key pushes " ON " shelves, passenger vehicle is entered system ready mode by dead ship condition, by diagnostic sensor, executor, the fault of entire car controller detection self and battery means, high voltage distribution box, electric machine controller, drive motor, electromotor, BSG motor (or ISG motor), instrument mechanism, gear mechanism, arrestment mechanism and accelerator mechanism;When fault having been detected, whole-control system enters troubleshooting pattern and carries out corresponding troubleshooting, stores DTC according to reference format, and is capable of standard fault codes and shows;It is absent from fault, then system initialization, initializes " Start " signal waiting driver afterwards;

B. key pushes " Start " shelves, system enters pre-driving model, and under this scheme, system can be closed, and (catalyst broadly refers to utilize coil to flow through current induced magnetic field in industrial electro the adnexaes such as main contactor, make contact closure, to reach to control the electrical equipment of load。The effect of main contactor is to switch off big electric current, controls main circuit, and auxiliary contactor is used to control realization circuit function, and general ball bearing made only leans on main contactor it is achieved that need auxiliary contactor when circuit is more complicated。), passenger vehicle is in driving states at any time;Car load driving moment main with accelerator pedal signal, motor speed, the voltage of battery, electric current relevant with speed。The position of accelerator pedal determines the driving moment demand of driver, range of motor speeds determines M curve and the operating characteristic of motor, motor temperature then determines the overload capacity of motor, the voltage of battery, electric current, SOC then reflect the state of battery, as power output source it limit the output of driving moment;With reference to Fig. 3, state according to battery means, drive motor and car load, the state of car load includes the factors such as the frictional force on car load and the gross weight of load-carrying, windage and ground, performance number X, this performance number X and the accelerator open degree of accelerator mechanism that entire car controller calculating passenger vehicle can export obtain passenger vehicle demand power value Y;The state of entire car controller detection battery means, if battery means is for excessively putting state, then reduces the output of passenger vehicle;If battery means did not have to put, then calculate the moment of torsion of drive motor according to the rotating speed of drive motor and demand power Y;

C. when starting to walk low speed, super capacitor powering to drive motor, only drive motor drives passenger vehicle walking;When passenger vehicle speed more than 18~24Km/h or super-capacitor voltage lower than 300V time, entire car controller detects the rotating speed of drive motor and electromotor automatically, and when drive motor and engine speed basic synchronization, electromotor incision drives;Now the power source of passenger vehicle is essentially from electromotor, and drive motor is in process auxiliary drive state;

D. when engine idle, car load speed are higher than 330V lower than 19Km/h and super-capacitor voltage, entire car controller controls engine misses by CAN interface, and car load is in pure electricity duty;When the undertension of super capacitor, by driven by engine electrical power generators, charge to super capacitor;

E. at passenger vehicle battery means electricity lower than the lower limit arranged, and car load speed lower than 19Km/h time, entire car controller automatically controlled engine rotating speed, and start BSG motor (or ISG motor) and generate electricity, battery means carries out electricity supplement, when electricity reaches the higher limit arranged, automatically terminate BSG motor (or ISG motor) generating state;

F., with reference to Fig. 4, when entire car controller detects the brake signal of arrestment mechanism, calculate current braking power according to brake pedal aperture and battery status, and monitor the state of battery means;Drive motor braking moment has precedence over mechanical braking and first works, drive motor strengthens braking moment, make vehicle deceleration, when driver steps on downwards brake pedal to certain depth, mechanical braking just works, until vehicle parking, if battery means does not overcharge, then braking energy is converted into electric energy by electromotor in the scope (preferred drive motor rotating speed is in the scope of 400~1500rpm) that drive motor rotating speed is 300~1500rpm;If battery means is in the state of overcharging, then it is not charged;Calculate the braking torque of motor according to motor speed, be sent to electric machine controller, complete the once calculating of braking energy feedback。

It is as follows that the range of motor speeds that Brake energy recovery is chosen calculates process:

Once brake the E=K1K2K3 (E1-FS) that recovers energy, in brake process, car body kinetic energy decay E1 is definite value, machinery driving efficiency K1 and force of rolling friction F fixes substantially, charge efficiency K3 is it is also contemplated that constant, for motor, in braking procedure, its generating efficiency K2 changes with the change of rotating speed and torque, and braking distance S depends on the size of brake force and the length of braking time。

Kinetic energy E1=1/2mv2, calculated below drops to 0 calculating by rotating speed。

(1) when drive motor rotating speed is lower than 300rpm, E1=0.5*18000*92=729kJ=0.2kWh。When the output of motor is 0~30kW, it is less than 70% that electric energy is converted into the efficiency of kinetic energy。According to the E=K that recovers energy that once brakes1K2K3(E1-FS);In removal process, along with the reduction of speed, generating efficiency and power constantly reduce, recoverable energy is few, inefficiency, and low speed braking can affect ABS effect。Therefore Brake energy recovery is not taked when motor speed is lower than 300rpm。

(2) when motor speed is higher than 1500rpm, E1=0.5*18000*452=18225kJ=5.06KWh。

When the output of drive motor is 170KW, it is 92% that electric energy is converted into the efficiency of kinetic energy。

With 170*0.92=156KW, generating efficiency K2Little with rotation speed change, other coefficients are amounted to and are calculated by 0.8, and power also reaches 120KW, and battery rated voltage 336, charging current has reached 357A。Beyond the maximum charging current that battery bears。And high speed braking can affect car load braking effect, cause potential safety hazard。Therefore Brake energy recovery is not taked when motor speed is higher than 1500rpm。

Therefore, motor speed is at 1500rpm(45km/h) more than time, be not braked energy regenerating。Drive motor is only braked energy regenerating in the 300rpm-1500rpm range of speeds。

Above are only the specific embodiment of the present invention, but the design concept of the present invention is not limited thereto, all changes utilizing this design that the present invention carries out unsubstantiality, the behavior invading scope all should be belonged to。

Claims (6)

1. a gas-electricity hybrid power coach whole-control system, including entire car controller, battery means, high voltage distribution box, electric machine controller, drive motor, decelerator, electromotor, BSG motor or ISG motor, instrument mechanism, gear mechanism, arrestment mechanism and accelerator mechanism;This instrument mechanism, battery means, electric machine controller connect this entire car controller respectively through CAN;This instrument mechanism, gear mechanism, arrestment mechanism and accelerator mechanism wire respectively connect this entire car controller;This electric machine controller is for controlling the operation of this drive motor, and this drive motor drives transmission passenger vehicle to advance by this decelerator;
It is characterized in that: described electromotor mixes linkage with described drive motor, described BSG motor or ISG motor are used for driving this electromotor of startup;Whole-control system also includes electromotor and super capacitor, and this electromotor is connected with described high voltage distribution box by described electric machine controller;This electromotor is assemblied on the clutch end of this drive motor, and this electromotor is used for converting kinetic energy into electric energy and is stored in described battery means;This super capacitor connects this entire car controller by CAN。
2. a kind of gas-electricity hybrid power coach whole-control system as claimed in claim 1, it is characterized in that: described whole-control system also includes air-conditioner controller and motor compressor, this air-conditioner controller wire connects described high voltage distribution box, and this air-conditioner controller is for controlling the operation of this motor compressor。
3. a kind of gas-electricity hybrid power coach whole-control system as claimed in claim 1, it is characterised in that: also including dc-dc and accumulator, this accumulator is connected with this high voltage distribution box by this dc-dc;This accumulator is powered for conventional electricity consumption, and this routine electricity consumption includes the electricity consumption that passenger vehicle startup, car light, instrument and car door open and close。
4. a kind of gas-electricity hybrid power coach whole-control system as claimed in claim 1, it is characterised in that: described battery means is connected to charging inlet。
5. the control method of a gas-electricity hybrid power coach whole-control system, it is characterised in that this control method uses the arbitrary described gas-electricity hybrid power coach whole-control system of claim 1 to 4, and this control method includes the following step being sequentially carried out:
A. key pushes " ON " shelves, passenger vehicle is entered system ready mode by dead ship condition, the fault of entire car controller detection self and battery means, high voltage distribution box, electric machine controller, drive motor, electromotor, BSG motor or ISG motor, instrument mechanism, gear mechanism, arrestment mechanism and accelerator mechanism;When fault having been detected, whole-control system enters troubleshooting pattern;It is absent from fault, then system initialization;
B. key pushes " Start " shelves, and passenger vehicle is in driving states at any time;When starting to walk low speed, super capacitor powering to drive motor, only drive motor drives passenger vehicle walking;When passenger vehicle speed more than the arbitrary speed per hour value of 18~24Km/h or super-capacitor voltage lower than 300V time, entire car controller detects the rotating speed of drive motor and electromotor automatically, and when drive motor and engine speed basic synchronization, electromotor incision drives;Now the power source of passenger vehicle is essentially from electromotor, and drive motor is in process auxiliary drive state;
C. when engine idle, car load speed are higher than 330V lower than 19Km/h and super-capacitor voltage, entire car controller controls engine misses by CAN interface, and car load is in pure electricity duty;When the undertension of super capacitor, by driven by engine electrical power generators, charge to super capacitor;
D. at passenger vehicle battery means electricity lower than the lower limit arranged, and car load speed lower than 19Km/h time, entire car controller automatically controlled engine rotating speed, and start BSG motor or ISG motor generates electricity, battery means carries out electricity supplement, when electricity reaches the higher limit arranged, automatically terminate BSG motor or ISG electric power generation state;
E. when entire car controller detects the brake signal of arrestment mechanism, drive motor braking moment has precedence over mechanical braking and first works, drive motor strengthens braking moment, make vehicle deceleration, when driver steps on downwards brake pedal to certain depth, mechanical braking just works, until vehicle parking, braking energy is converted into electric energy by electromotor in the scope that drive motor rotating speed is 300~1500rpm。
6. the control method of a kind of gas-electricity hybrid power coach whole-control system as claimed in claim 5, it is characterised in that: in step e, braking energy is converted into electric energy in the scope that drive motor rotating speed is 400~1500rpm and stores to accumulator by electromotor。
CN201410163722.9A 2014-04-23 2014-04-23 A kind of gas-electricity hybrid power coach whole-control system and control method thereof CN103895641B (en)

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