CN106043176B - Automotive power supply system - Google Patents
Automotive power supply system Download PDFInfo
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- CN106043176B CN106043176B CN201610221595.2A CN201610221595A CN106043176B CN 106043176 B CN106043176 B CN 106043176B CN 201610221595 A CN201610221595 A CN 201610221595A CN 106043176 B CN106043176 B CN 106043176B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric 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
- B60R16/02—Electric 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
- B60R16/03—Electric 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 for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric 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 for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric 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
- B60R16/02—Electric 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
- B60R16/03—Electric 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 for supply of electrical power to vehicle subsystems or for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/48—Parallel type
- B60K6/485—Motor-assist type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT 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
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
- B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1423—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle with multiple batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT 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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge state
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT 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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/30—Auxiliary equipments
- B60W2510/305—Power absorbed by auxiliaries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/46—The network being an on-board power network, i.e. within a vehicle for ICE-powered road vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
Abstract
The automotive power supply system that fuel efficiency can be inhibited to deteriorate and make electric loading steady operation is provided.Automotive power supply system includes ISG (2), by protection load (3), lead battery (4) and lithium ion battery (5).Automotive power supply system has：It switchs (SW1), forms the connection or disconnected of lead battery (4) and ISG (2)；It switchs (SW3), form lead battery (4) and is protected the connection or disconnected of load (3)；It switchs (SW4), form lithium ion battery (5) and is protected the connection or disconnected of load (3)；ECU (10), the connection or disconnected of control switch (SW1, SW3, SW4).ECU is by the drive control assisting vehicle travel of ISG (2), it is notconnect state by switch (SW1) control, switch (SW3) and switch (SW4) in either one be connection status when, by another party control be notconnect state.
Description
Technical field
The present invention relates to the automotive power supply systems of the supply of electric power state of control vehicle.
Background technology
As described in Patent Document 1, in the vehicle power for having the secondary cells such as Ni-MH battery or lithium ion battery
In system, it will be connected in parallel with secondary cell as the subsidiary engine of electric loading, the subsidiary engine being connected in parallel thus made steadily to work.
Also, lithium ion battery or Ni-MH battery are connected to instrument or auto-navigation system etc. and need that voltage stabilization is made to be steady state value
Subsidiary engine (being loaded by protection), lead battery is connected to the disposable subsidiary engine such as wiper or fan (general load).
Existing technical literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2011-178384 bulletins
Invention content
Problems to be solved by the invention
However, being used as generator to execute work(upon regeneration the automotive power supply system connection recorded in patent document 1
Can and in the case that when traction, axle shaft rotation and the dynamotor that supports vehicles driving carry out power supply control, be
Use dynamotor in auxiliary control, need moment big electric propulsion and output power, thus by lead battery with
Both lithium ion batteries (or Ni-MH battery) carry out the driving of dynamotor.
However, when carrying out this supply of electric power, the electric discharge of lead battery becomes larger, and needs the charging for carrying out lead battery.Lead electricity
The charge efficiency in pond is poor compared with lithium ion battery or Ni-MH battery, and charging needs the time, therefore, in order to carry out lead electricity
The charging in pond becomes more by the frequency of engine driven generators, therefore the result is that leads to the deterioration of fuel efficiency.
In addition, when being controlled from lithium ion battery or Ni-MH battery offer electric power to execute auxiliary, according to the lithium-ion electric
The charged state of pond or Ni-MH battery can not be provided from lithium ion battery or Ni-MH battery to by protection load stabilization sometimes
Electric power.
Therefore, the purpose of the present invention is to provide can inhibit fuel efficiency deterioration and so that electric loading is steadily worked
Automotive power supply system.
The solution to the problem
One mode of the invention of the automotive power supply system to solve the above problems is automotive power supply system, is had：Electricity
Motivation (2) generates electricity in vehicle, assists the traveling of above-mentioned vehicle when driving；Electric loading (3), in the row of above-mentioned vehicle
Stable supply of electric power is needed in sailing；1st battery (4) is connect and upward with above-mentioned motor and above-mentioned electric loading
It states motor and above-mentioned electric loading provides electric power；2nd battery (5), connect with above-mentioned motor and above-mentioned electric loading and to
Above-mentioned motor and above-mentioned electric loading provide electric power, and the charging time is shorter than above-mentioned 1st battery and repeatable charging, above-mentioned vehicle
Have with power-supply system：1st switch (SW1), forms the connection status of above-mentioned 1st battery and above-mentioned motor or non-company
Connect state；2nd switch (SW3), forms the connection status or notconnect state of above-mentioned 1st battery and above-mentioned electric loading；The
3 switches (SW4), form the connection status or notconnect state of above-mentioned 2nd battery and above-mentioned electric loading；And control unit
(10), the connection status or notconnect state of above-mentioned 1st switch, above-mentioned 2nd switch and above-mentioned 3rd switch are controlled, on
Control unit is stated in the case where assisting above-mentioned vehicle to travel by the drive control of above-mentioned motor, above-mentioned 1st switch is controlled
The above-mentioned 2nd is switched when either one during above-mentioned 2nd switch and the above-mentioned 3rd switch is connection status for notconnect state
It is notconnect state to switch control with another party in above-mentioned 3rd switch.
Invention effect
According to the present invention, when executing auxiliary control, from the 2nd battery to powering electric motors, from the 1st battery or
Either direction electric loading in 2nd battery provides electric power, therefore can inhibit the deterioration of fuel efficiency and make electric loading steadily work
Make.
Description of the drawings
Fig. 1 is the figure for the automotive power supply system for indicating an embodiment of the invention, is to indicate have vehicle electricity consumption
The composition figure of the vehicle of source system.
Fig. 2 be indicate the automotive power supply system of an embodiment of the invention, by the connection status of switch and
The figure that the circuit that the combination of notconnect state is realized is constituted.
Fig. 3 is the figure for the automotive power supply system for indicating an embodiment of the invention, is to indicate that engine opens again
The figure that circuit when dynamic is constituted.
Fig. 4 is the figure for the automotive power supply system for indicating an embodiment of the invention, indicates lithium ion battery
The figure that circuit when auxiliary in the case that charged state is low controls is constituted.
Fig. 5 is the figure for the automotive power supply system for indicating an embodiment of the invention, indicates lithium ion battery
The figure that circuit when auxiliary in the case of charged state height controls is constituted.
Reference sign
1 vehicle
2 ISG (motor)
3 load (electric loading) by protection
4 lead batteries (the 1st battery)
5 lithium ion batteries (the 2nd battery)
10 ECU (control unit)
SW1 is switched
SW3 is switched
SW4 is switched
Specific implementation mode
Hereinafter, embodiments of the present invention are described in detail with reference to accompanying drawings.In Fig. 1, the reality of the present invention is installed
Apply the automotive power supply system of mode vehicle 1 be configured to include：Engine 7, the ISG (Integrated as motor
Starter Generator：It is integrated to start generator) 2, as electric loading by protection load 3, generally load 6, as the
The lead battery 4 of 1 battery and lithium ion battery 5 as the 2nd battery.
Engine 7 includes such as petrol engine.Engine 7 is configured to the internal combustion engine of following 4 cycle：When piston is in gas
It carries out 2 times carrying out including induction stroke, compression stroke, expansion stroke and exhaust stroke in a period of moving back and forth in cylinder
A succession of 4 stroke, and light a fire in a period of compression stroke and expansion stroke, engine 7, which generates, makes vehicle traveling
Power.
ISG2 is linked by the bent axle of transmission belt 8 and engine 7, is generated electricity by the traveling of vehicle 1, and assist
The traveling of vehicle 1.That is, ISG2 executes function as generator and motor.ISG2, which is also used as, makes engine 7 from halted state
The starter of restarting executes function.
It is that the electric loading of stable supply of electric power, including such as instrument are needed in the traveling of vehicle 1 by protection load 3
Table or auto-navigation system.
Usually load 6 is electricity need not having stable supply of electric power compared with by protection load 3, using temporarily
Load, including such as wiper or cooling fan.
Lead battery 4 and lithium ion battery 5 include chargeable secondary cell, connect with ISG2 and by protection load 3 and
Electric power is provided to ISG2 and by protection load 3.Lithium ion battery 5 is that energy density is high compared with lead battery 4 and the charging time is short
And rechargeable batteries.The number etc. of the unit of lead battery 4 and lithium ion battery 5, which is set so that, generates the defeated of about 12V
Go out voltage.
In addition, vehicle 1 has switch SW1, switch SW2, switch SW3 and switch SW4.Switch SW1, it switch SW2, opens
SW3, switch SW4 and 5 integration of lithium ion battery are closed, lithium ion battery packet 11 is constituted.
Switch SW1 forms the connection status or notconnect state of lead battery 4 and ISG2.Switch SW3 forms lead battery 4
With connection status or the notconnect state for being loaded 3 by protection.Switch SW4 forms lithium ion battery 5 and by protection load 3
Connection status or notconnect state.Switch SW2 forms the connection status or notconnect state of lithium ion battery 5 and ISG2.
Thus, if at least one party in switch SW3 or switch SW4 is connection status, from lead battery 4 or lithium ion battery 5
In at least one party to by protection load 3 provide electric power.
In addition, above-mentioned switch SW1~switch SW4 forms connection status when for closed state, shape when for off-state
At notconnect state.
In addition, there is vehicle 1 ECU10 as control unit, the ECU10 to control the connection shape of switch SW1~switch SW4
State or notconnect state.In other words, ECU10 controls the open and-shut mode of switch SW1~switch SW4.In addition, ECU10 is carried out
The drive control etc. of ISG2.Such as ECU10 carries out auxiliary control, the rule of assisting vehicle travel in the drive control by ISG2
When fixed stop condition and restart conditionss are set up, automatically made the idling of engine 7 stopping and restarting respectively
Stop control.In addition, ECU10 when carrying out idle stop control, if defined restart conditionss are set up, drives
ISG2 and make engine 7 restart.In this way, vehicle 1, which has, automatically stops row in the case where defined condition is set up
Sail or restore the function of exercising.
Switch SW1 controls are notconnect state, and switch SW2 is controlled to connect in execution auxiliary control by ECU10
Connect state.Lead battery 4 and ISG2 is disconnected as a result, electric power is only provided from lithium ion battery 5 to ISG2, therefore can inhibit lead battery
The reduction of 4 charging capacity can inhibit the deterioration of fuel efficiency.In addition, at this point, when any in switch SW3 and switch SW4
When side is connection status, control is notconnect state at another party's switch.It as a result, can be from lead battery 4 or lithium ion battery 5
In either direction by protection load 3 provide electric power.Therefore, the charged state of lithium ion battery 5 can not depended on to being protected
Load 3 provides electric power.In this way, the automotive power supply system of an embodiment of the invention can inhibit the deterioration of fuel efficiency
And make steadily to be worked by protection load 3 as electric loading.Here, as described above, the contact that connection status refers to switch closes
The state (closed state) of conjunction, notconnect state refer to the state (open state) that the contact of switch disconnects.
In addition, ECU10 is in the case where assisting the traveling of vehicle 1 by the drive control of ISG2, in lithium ion battery 5
Charging capacity less than in the case of defined charging capacity, be connection status by switch SW3 controls, switch SW4 is controlled be
Notconnect state.It, can be from lead battery 4 to quilt as a result, in the case where the charged state of lithium ion battery 5 is in low state
Protection load 3 provides electric power.Therefore, auxiliary control can be executed so that inhibiting the deterioration of fuel efficiency, and loaded to by protection
3 steadily provide electric power.
ECU10 will be opened in the case where making engine 7 be restarted from halted state when executing idle stop control
It is connection status to close SW1 controls, is notconnect state by switch SW2 controls, is notconnect state by switch SW3 controls, will open
It is connection status to close SW4 controls.As a result, the electric power of the permission discharge capacity more than lithium ion battery 5 is needed in moment again
When startup, electric power can be provided from lead battery 4 to ISG2, can provide electric power from lithium ion battery 5 to by protection load 3.Therefore,
Lithium ion battery 5 can be protected, and electric discharge caused by by big output is not influenced, and steadily provides electric power to by protection load 3.
In addition, restarting can be controlled without using electric pressure converters such as DCDC converters, the cost increase of whole system can be inhibited.
In this way, the automotive power supply system of an embodiment of the invention configures ISG2 and lead battery by switch SW1
4, ISG2 and lithium ion battery 5 are configured by switch SW2, to merely with the high lithium ion battery of the recyclability from energy
The electric power of supply can control the driving of ISG2, can execute auxiliary control so that inhibiting the deterioration of fuel efficiency.
In addition, by switch SW3 configurations by protection load 3 and lead battery 4, by switch SW4 configurations by protection load 3
It can be carried from lithium ion battery 5 to by protection load 3 thus when the charging capacity of lithium ion battery 5 is high with lithium ion battery 5
For electric power, when the charging capacity of lithium ion battery 5 is low, electric power can be provided from lead battery 4 to by protection load 3.Therefore, i.e.,
Make in the case where the charging capacity of lithium ion battery 5 is low, can also execute auxiliary control and to loading 3 steadily by protection
Electric power is provided.
In addition it is also possible to be, when the automotive power supply system of other embodiments of the present invention executes auxiliary control,
The size of charging capacity regardless of lithium ion battery 5 often can provide electric power from lead battery 4 to by protection load 3.
In this case, switch SW1 controls are notconnect state by ECU10, are connection status by switch SW2 controls, will be switched
SW3 controls are connection status, are notconnect state by switch SW4 controls.In this case, ECU10 does not have to monitoring lithium ion battery
5 charging capacity can execute auxiliary control so that inhibiting the deterioration of fuel efficiency, and to being protected by simply controlling
Load 3 steadily provides electric power.In addition, in the case where executing the auxiliary for needing to export greatly control, also to by protection load 3
Electric power is steadily provided.
Hereinafter, each circuit for the automotive power supply system that explanation is formed by the switching of switch SW1~SW4 is constituted.
As shown in Fig. 2, in the automotive power supply system, ECU10 by switch SW1~SW4 controls be connection status or
Notconnect state is consequently formed circuit and constitutes 1~circuit composition 11.
In fig. 2, circuit, which constitutes 1, is formed when vehicle-state is " when forbidding the charge and discharge of lithium ion battery ".Make
As an example of, it is under low temperature environment and state that the generated energy of ISG2 is few.The circuit constitute 1 in, switch SW1, SW2, SW3,
SW4 is controlled as connection status, notconnect state, connection status, notconnect state respectively.In circuit constitutes 1, it will switch
SW2 and switch SW4 are set as notconnect state, and lithium ion battery (being denoted as Li batteries in figure) 5 is made to be disconnected with power-supply system, by
This forbids the charge and discharge of lithium ion battery 5.In addition, switch SW1 and switch SW3 are set as connection status, will be generated by ISG2
Electric power or lead battery 4 electric power to by protection load 3 provide.It is steadily worked by protection load 3 as a result,.
In addition, at low ambient temperatures, lithium ion battery 5 can discharged power it is small, it is therefore possible to by protection load 3
Supply of electric power it is unstable.Therefore, as circuit constitutes 1, switch SW4 controls can be often notconnect state by ECU10,
It is connection status by switch SW3 controls so that from lead battery 4 to steadily providing electric power by protection load 3.
In addition, being not limited under the low temperature environment recorded as an example, circuit, which constitutes 1, to forbid filling for lithium ion battery 5
It is formed in the case of electric discharge.Specifically, including under high temperature environment the case where also forbidding the charge and discharge of lithium ion battery 5.
Circuit constitutes 2 and is formed when vehicle-state is " (1) under low temperature environment ".As an example, it is under low temperature environment
And the state that the generated energy of ISG2 is fully big.At low ambient temperatures, lithium ion battery 5 can discharged power (exportable electric power)
It is small, it is therefore possible to which sufficient electric power can not be provided from lithium ion battery 5 to by protection load 3, but can be to lithium ion battery 5
Charging.Therefore, in the circuit constitutes 2, switch SW1, SW2, SW3, SW4 are controlled as notconnect state, connection shape respectively
State, notconnect state, connection status.In circuit constitutes 2, by the way that switch SW2 is set as connection status, to be produced with ISG2
Raw electric power charges to lithium ion battery 5.In addition, (2) are that lithium ion battery 5 is charged to and not excessively puts under low temperature environment
The state of the degree of electricity, therefore in circuit constitutes 2, by the way that switch SW4 is set as connection status, thus from lithium ion battery 5
Electric power is provided to by protection load 3.It is steadily worked by protection load 3 as a result,.
Circuit constitutes 3 and is formed when vehicle-state is " (2) under low temperature environment ".As an example, it is under low temperature environment
And the generated energy of ISG2 fully big state and be the state for needing to make 5 quick charge of lithium ion battery.3 are constituted in the circuit
In, switch SW1, SW2, SW3, SW4 are controlled as notconnect state, connection status, connection status, notconnect state respectively.
In circuit constitutes 3, by the way that switch SW2 is set as connection status, to which the electric power generated with ISG2 fills lithium ion battery 5
Electricity.In addition, (3) are the states needed to 5 quick charge of lithium ion battery under low temperature environment, therefore in the circuit constitutes 3,
By the way that switch SW4 is set as notconnect state, switch SW3 is set as connection status, to avoid the electric discharge of lithium ion battery 5
And provide electric power from lead battery 4 to by protection load 3.It is steadily worked by protection load 3 as a result,.In addition, constituting 3 in circuit
In, it is charged to lithium ion battery 5 with the electric power that ISG2 is generated, electric power, therefore energy is provided from lead battery 4 to by protection load 3
Rapidly charge to lithium ion battery 5.
Circuit constitutes 4 and is formed when vehicle-state is " (1) when regeneration ".(1) is that ISG2 is being carried out again when regeneration
The state of hair tonic electricity.In the circuit constitutes 4, switch SW1, SW2, SW3, SW4 are individually controlled as connection status, connection shape
State, notconnect state, connection status.In circuit constitutes 4, by the way that switch SW1 and switch SW2 is set as connection status, from
And the ISG2 electric power generated is supplied to lead battery 4 and lithium ion battery 5, efficiently lead battery 4 and lithium ion battery 5 are filled
Electricity.In addition, (1) is the state that lithium ion battery 5 is charged to the degree not excessively discharged when regeneration, therefore in circuit structure
In 4, by the way that switch SW3 is set as notconnect state, switch SW4 is set as connection status, to from lithium ion battery 5 to
Electric power is provided by protection load 3.It is steadily worked by protection load 3 as a result,.
Circuit, which constitutes 5, to be formed for " (2) when regeneration " in vehicle-state.When regeneration (2) with regeneration when (1) again it is
ISG2 is carrying out the state of regenerative electric power.In the circuit constitutes 5, switch SW1, SW2, SW3, SW4 are individually controlled as even
Connect state, connection status, connection status, notconnect state.In circuit constitutes 5, by the way that switch SW1 and switch SW2 is set
For connection status, to which the electric power for generating ISG2 provides lead battery 4 and lithium ion battery 5, to lead battery 4 and lithium ion
Battery 5 efficiently charges.In addition, (2) are the states that lithium ion battery 5 is not sufficiently charged when regeneration, therefore in circuit
In constituting 5, by the way that switch SW3 is set as connection status, switch SW4 is set as notconnect state, thus by ISG2 to lithium from
Sub- battery 5 charges, and electric power is provided from lead battery 4 to by protection load 3.It is steadily worked by protection load 3 as a result,.In addition,
In the case where needing rapidly to charge to lithium ion battery 5, switch SW1 is set as notconnect state.In this feelings
Under condition, the ISG2 electric power generated can be only provided to lithium ion battery 5.
Circuit constitutes 6 and is formed when vehicle-state is " when restarting ".It is the drive by ISG2 when restarting
The state of the dynamic restarting for carrying out engine 7.In the circuit constitutes 6, switch SW1, SW2, SW3, SW4 are controlled respectively
For connection status, notconnect state, notconnect state, connection status.In circuit constitutes 6, by the way that switch SW1 is set as connecting
State is connect, switch SW2 is set as notconnect state, to provide big electric power, driving from lead battery 4 to ISG2 as shown in Figure 3
ISG2.In addition, by the way that switch SW3 is set as notconnect state, switch SW4 is set as connection status, thus from lithium ion battery
5 provide electric power to by protection load 3.That is, when restarting, by the electric drive ISG2 of lead battery 4, from lithium-ion electric
Pond 5 provides electric power to by protection load 3, is steadily worked by protection load 3 as a result,.In this way, in circuit constitutes 6, connection
ISG2 and the circuit of lead battery 4 and connection are formed independently of each other by the circuit of protection load 3 and lithium ion battery 5.In addition,
In figure 3, it indicates connection status when switch SW1~SW4 is to be closed, indicates disconnected when switch SW1~SW4 is to disconnect
State.
Circuit, which constitutes 7, to be formed when vehicle-state is " when asking the charging of lithium ion battery (1) ".Ask lithium from
(1) needs to carry out the state of the charging of lithium ion battery 5 other than being when regeneration when the charging of sub- battery.In the circuit structure
In 7, switch SW1, SW2, SW3, SW4 are controlled as notconnect state, connection status, connection status, disconnected shape respectively
State.In circuit constitutes 7, by the way that switch SW2 is set as connection status, to which the electric power for generating ISG2 provides lithium ion
Battery 5 charges to lithium ion battery 5.In addition, by the way that switch SW4 is set as notconnect state, switch SW3 is set as connection shape
State, to provide electric power to by protection load 3 from lead battery 4.It is steadily worked by protection load 3 as a result,.In addition, in electricity
During road constitutes 7, by the way that switch SW1 is set as notconnect state, to which lead battery 4 is to generally loading 6 and by 3 liang of protection load
The electric loading of person is discharged.It is desirable that reducing the discharge capacity of battery 4, switch SW3 controls are non-company by preferably ECU10
State is connect, is connection status by switch SW4 controls, from lithium ion battery 5 to providing electric power by protection load 3, is generated with ISG2
Electric power to lithium ion battery 5 charge.In this way, in circuit constitutes 7, one in switch SW3 and switch SW4 can also be
Connection status or notconnect state.
Circuit, which constitutes 8, to be formed when vehicle-state is " when asking the charging of lithium ion battery (2) ".Ask lithium from
When the charging of sub- battery (2) with request lithium ion battery charging when (1) again it is in addition to regeneration when other than need progress lithium
The state of the charging of ion battery 5.In the circuit constitutes 7, switch SW1, SW2, SW3, SW4 are controlled as connection shape respectively
State, connection status, connection status, notconnect state.In circuit constitutes 8, by the way that switch SW1 and switch SW2 is set as connecting
State is high to lead battery 4 and lithium ion battery 5 to which the electric power for generating ISG2 provides lead battery 4 and lithium ion battery 5
The charging of effect ground.In addition, by the way that switch SW4 is set as notconnect state, switch SW3 is set as connection status, to electric from lead
Pond 4 provides electric power to by protection load 3.It is steadily worked by protection load 3 as a result,.In addition, in the charging of lithium ion battery 5
In the case that state is in the state less than specified value, switch SW3 controls are connection status by preferably ECU10, by switch SW4
Control is notconnect state, and electric power is provided from lead battery 4 to by protection load 3.On the contrary, in the charging shape of lithium ion battery 5
State be in the state of specified value or more in the case of (in the case where charged state is substantially sufficient), preferably ECU10 will be switched
SW3 controls are notconnect state, are connection status by switch SW4 controls, are provided from lithium ion battery 5 to by protection load 3
Electric power.In this way, in circuit constitutes 8, one in switch SW3 and switch SW4 can also be connection status or disconnected shape
State.
Circuit, which constitutes 9, to be formed for " when lead battery and the good charged state of lithium ion battery " in vehicle-state.?
During the circuit constitutes 9, switch SW1, SW2, SW3, SW4 are controlled as notconnect state, notconnect state, disconnected shape respectively
State, connection status.In circuit constitutes 9, by the way that switch SW4 is set as connection status, thus from lithium ion battery 5 to being protected
Shield load 3 provides electric power.It is steadily worked by protection load 3 as a result,.At this point, switch SW3 is notconnect state, therefore will not
Electric power is provided from the sides switch SW3 to by protection load 3.In circuit constitutes 9, by the charging time is short and the lithium of repeatable charging
Ion battery 5 is energetically used for by the work of protection load 3, thus ensuring that not by ISG2 for that during generating electricity, can subtract
The few load of electrical generation of vehicle when driving, can improve fuel efficiency.In addition, switch SW2 can also be connection status.
It is to be formed " when auxiliary control (when the charging capacity of lithium ion battery is low) " that circuit composition 10, which is in vehicle-state,
's.In the circuit constitutes 10, switch SW1, SW2, SW3, SW4 are controlled as notconnect state, connection status, connection respectively
State, notconnect state.Vehicle-state at this time is the shape that auxiliary control is executed when the charged state of lithium ion battery 5 is low
State, therefore in circuit constitutes 10, by the way that switch SW3 is set as connection status, switch SW4 is set as notconnect state, thus
As shown in Figure 4 from lead battery 4 to providing electric power by protection load 3.In addition, by the way that switch SW2 is set as connection status, to
From lithium ion battery 5 electric power is provided to ISG2.In addition, by the way that switch SW1 is set as notconnect state, to make lead battery 4
It is disconnected with ISG2.In this way, in circuit constitutes 10, the circuit and connection that connect ISG2 and lithium ion battery 5 are loaded by protection
3 and the circuit of lead battery 4 be formed independently of each other.As a result, in circuit constitutes 10, by the charging time is short and repeatable charging
Lithium ion battery 5 energetically be used for ISG2 driving, therefore can with high-frequency execute auxiliary control.In addition, can be from lead electricity
Pond 4 provides electric power to by protection load 3, makes that load 3 is protected steadily to work.In addition, in Fig. 4, switch SW1~SW4 is closed
Indicate that connection status, switch SW1~SW4 indicate notconnect state when disconnecting when conjunction.
It is to be formed " when auxiliary control (when the charging capacity of lithium ion battery is high) " that circuit composition 11, which is in vehicle-state,
's.In the circuit constitutes 11, switch SW1, SW2, SW3, SW4 are controlled as notconnect state, connection status, non-company respectively
Connect state, connection status.Vehicle-state at this time is the shape that auxiliary control is executed when the charged state of lithium ion battery 5 is high
State.In circuit constitutes 11, as shown in figure 5, by the way that switch SW3 is set as notconnect state, switch SW4 is set as connection shape
State, to provide electric power to by protection load 3 from lithium ion battery 5, and by the way that switch SW2 is set as connection status, to
From lithium ion battery 5 also electric power is provided to ISG2.In addition, switch SW1 is set as notconnect state, by lead battery 4 and ISG2
It disconnects.In circuit constitutes 11, by the charging time is short and the lithium ion battery 5 of repeatable charging is energetically used for the drive of ISG2
It is dynamic, therefore auxiliary control can be executed with high-frequency.In addition, can from lithium ion battery 5 to by protection load 3 provide electric power, make by
Protection load 3 steadily works.In addition, in Figure 5, switch SW1~SW4 indicates connection status when being closed, switch SW1~
SW4 indicates notconnect state when disconnecting.
In this way, in circuit constitutes 10,11, when executing auxiliary control, it is short and repeatable fill only to be used for the self-charging time
Thus the electric drive ISG2 of the lithium ion battery 5 of electricity inhibits the reduction of the charging capacity of lead battery.
In addition, circuit constitute 10,11 in, when execute auxiliary control when, according to the charged state of lithium ion battery 5 from
Lead battery 4 provides electric power to by protection load 3, makes with thus not depending on the charged state of lithium ion battery 5 to be protected load 3
Steadily work.
As it appears from the above, in the automotive power supply system of present embodiment, circuit constitute 1~11 be switch SW3 or
Either one in switch SW4 is controlled as connection status, therefore can make that load 3 is protected steadily to work.
Illustrate the function and effect of the automotive power supply system of present embodiment.
The automotive power supply system of present embodiment has：Switch SW1 forms the connection status of lead battery 4 and ISG2
Or notconnect state；Switch SW3 forms lead battery 4 and connection status or notconnect state by protection load 3；It opens
SW4 is closed, lithium ion battery 5 and connection status or notconnect state by protection load 3 are formed；And ECU10, control
Make the connection status or notconnect state of switch SW1, switch SW3 and switch SW4.
Also, ECU10 is by the drive control assisting vehicle travel of ISG2, is non-by switch SW1 controls
Connection status, when either one in switch SW3 and switch SW4 is connection status, it is disconnected shape that another party, which is switched control,
State.
As a result, when carrying out auxiliary control, i.e., when ISG2 assisting vehicle travels, lead battery 4 and ISG2 are disconnected, only from
Lithium ion battery 5 provides electric power to ISG2, therefore can inhibit the reduction of the charging capacity of lead battery 4, inhibits the evil of fuel efficiency
Change.In addition, electric power can be provided from the either direction in lead battery 4 or lithium ion battery 5 by protection load 3.Therefore, can not
With relying on the charged state of lithium ion battery 5 to providing electric power by protection load 3.As a result, the evil of fuel efficiency can be inhibited
Change and makes that load 3 is protected steadily to work.In other words, the automotive power supply system of present embodiment have switch SW3 and
Switch SW4, thus when by ISG2 auxiliary travellings carry out from lead battery 4 to by protection load 3 supply of electric power, thus, it is possible to
Implement the auxiliary by ISG2 using the big electric power of lithium ion battery 5.
In addition, in the automotive power supply system of present embodiment, as long as following constituted：When ISG2 assists vehicle
When driving, at least lead battery 4 and ISG2 is disconnected, and only can provide electric power to ISG2 from lithium ion battery 5, from lead battery 4 or
Either direction in lithium ion battery 5 provides electric power by protection load 3.That is, the present invention can also be 5 He of lithium ion battery
The composition that ISG2 is connected always.
In addition, in the automotive power supply system of present embodiment, vehicle 1 is being assisted by the drive control of ISG2
In the case of traveling, when the charging capacity of lithium ion battery 5 is less than defined charging capacity, ECU10 controls switch SW3
It is notconnect state by switch SW4 controls for connection status.
As a result, when the charged state of lithium ion battery 5 is low, electric power can be provided from lead battery 4 to by protection load 3, because
This can make that load 3 is protected steadily to work.In other words, the automotive power supply system of present embodiment have switch SW3 and
Switch SW4, therefore when the charged state of lithium ion battery 5 is high, electricity can be provided from lithium ion battery 5 to by protection load 3
Power, therefore can effectively apply flexibly the electric power of lithium ion battery 5.
In addition, in the automotive power supply system of present embodiment, vehicle 1 has the case where defined condition is set up
Under so that engine 7 is stopped and the function that restarts, ECU10 is in the feelings for making engine 7 be restarted from halted state
It is connection status by switch SW1 controls under condition, is notconnect state by switch SW3 controls, is connection by switch SW4 controls
State.
As a result, when engine 7 restarts, electric power is provided from lead battery 4 to ISG2, from lithium ion battery 5 to being protected
Shield load 3 provides electric power, therefore can make that load 3 is protected steadily to work.In other words, the vehicle electricity consumption of present embodiment
Source system moment in the restarting of engine 7 needs the electric power of the permission discharge capacity more than lithium ion battery 5, passes through control
Make switch SW1 and SW3, can make include ISG2 and lead battery 4 circuit with including lithium ion battery 5 and protected the electricity for loading 3
Road is independent so that carry out supply of electric power from lead battery 4 to ISG2, therefore can be without loading 3 in lithium ion battery 5 and by protection
Between be arranged DCDC converters.
In addition, in the automotive power supply system of present embodiment, lithium ion battery 5 is that the charging time is shorter than lead battery 4
And rechargeable batteries.
Automotive power supply system is constituted by 2 kinds of different batteries of charge characteristic as a result, therefore in automotive power supply system
It is middle to realize efficient charge and discharge control.Moreover, the automotive power supply system of present embodiment by the configuration of the position of ISG2 than
Lead battery 4 leans on 5 side of lithium ion battery.Can the high lithium ion battery 5 of energy recyclability only be made into ISG2 as electric power as a result,
Traction.
Although disclosing embodiments of the present invention, it is understood that those skilled in the art can not depart from the present invention
Range in the case of apply change.It is intended to all this modifications and equivalent being contained in claim.
Claims (3)
1. a kind of automotive power supply system, has：
Motor (2) generates electricity in vehicle, assists the traveling of above-mentioned vehicle when driving；
Electric loading (3), needs stable supply of electric power in the traveling of above-mentioned vehicle；
1st battery (4) connect with above-mentioned motor and above-mentioned electric loading and is provided to above-mentioned motor and above-mentioned electric loading
Electric power；
2nd battery (5) connect with above-mentioned motor and above-mentioned electric loading and is provided to above-mentioned motor and above-mentioned electric loading
Electric power, the charging time is shorter than above-mentioned 1st battery and repeatable charging,
Above-mentioned automotive power supply system is characterized in that having：
1st switch (SW1), forms the connection status or notconnect state of above-mentioned 1st battery and above-mentioned motor；
2nd switch (SW3), forms the connection status or notconnect state of above-mentioned 1st battery and above-mentioned electric loading；
3rd switch (SW4), forms the connection status or notconnect state of above-mentioned 2nd battery and above-mentioned electric loading；And
Control unit (10) controls above-mentioned 1st switch, the connection status of above-mentioned 2nd switch and above-mentioned 3rd switch or non-company
State is connect,
Above-mentioned control unit is opened in the case where assisting above-mentioned vehicle to travel by the drive control of above-mentioned motor by the above-mentioned 1st
It is notconnect state to close control, when either one in above-mentioned 2nd switch and above-mentioned 3rd switch is connection status, by the above-mentioned 2nd
It is notconnect state that another party in switch and above-mentioned 3rd switch, which switchs control,.
2. automotive power supply system according to claim 1, wherein
Above-mentioned control unit is in the case where the drive control by above-mentioned motor assists the traveling of above-mentioned vehicle, when the above-mentioned 2nd
When the charging capacity of battery is less than defined charging capacity, it is connection status by above-mentioned 2nd switch control, the above-mentioned 3rd is switched
Control is notconnect state.
3. the automotive power supply system according to claim 1 or claim 2, wherein
Above-mentioned vehicle has the function of automatically making engine stop and restarting in the case where defined condition is set up,
For above-mentioned control unit in the case where above-mentioned engine is restarted from halted state, above-mentioned 1st switch control is connection shape
Above-mentioned 2nd switch control is notconnect state by state, is connection status by above-mentioned 3rd switch control.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015083130A JP6582509B2 (en) | 2015-04-15 | 2015-04-15 | Vehicle power supply system |
| JP2015-083130 | 2015-04-15 |
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| CN106043176A CN106043176A (en) | 2016-10-26 |
| CN106043176B true CN106043176B (en) | 2018-11-06 |
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| JP (1) | JP6582509B2 (en) |
| CN (1) | CN106043176B (en) |
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| JP6855785B2 (en) * | 2016-12-26 | 2021-04-07 | スズキ株式会社 | Hybrid vehicle |
| JP2018103741A (en) * | 2016-12-26 | 2018-07-05 | スズキ株式会社 | Hybrid vehicle |
| JP2018103747A (en) * | 2016-12-26 | 2018-07-05 | スズキ株式会社 | Hybrid vehicle |
| JP6784193B2 (en) * | 2017-02-28 | 2020-11-11 | 株式会社デンソー | Battery pack |
| JP2019006263A (en) * | 2017-06-26 | 2019-01-17 | 株式会社Ｓｕｂａｒｕ | Vehicle control apparatus |
| CN110920548B (en) * | 2019-11-20 | 2021-11-23 | 北京汽车股份有限公司 | Vehicle power supply control method, controller, system and vehicle |
| CN110979221A (en) * | 2019-12-26 | 2020-04-10 | 长城汽车股份有限公司 | Power supply control method and device for vehicle and vehicle |
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| CN101407180A (en) * | 2007-10-11 | 2009-04-15 | 李尔公司 | Dual energy-storage for a vehicle system |
| CN102687370A (en) * | 2009-10-14 | 2012-09-19 | 宝马股份公司 | Energy storage system for the electrical energy supply of consumers in a vehicle |
| JP5387383B2 (en) * | 2009-12-18 | 2014-01-15 | 株式会社デンソー | In-vehicle power supply |
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| EP1360090B1 (en) * | 2001-02-16 | 2005-01-12 | Siemens Aktiengesellschaft | Motor vehicle electric system |
| JP3812459B2 (en) * | 2002-02-26 | 2006-08-23 | トヨタ自動車株式会社 | Vehicle power supply control device |
| JP2008054484A (en) * | 2006-08-28 | 2008-03-06 | Auto Network Gijutsu Kenkyusho:Kk | Power supply device for vehicle |
| JP2011155791A (en) * | 2010-01-28 | 2011-08-11 | Panasonic Corp | Power supply device for vehicle |
| JP5494498B2 (en) | 2010-02-03 | 2014-05-14 | 株式会社デンソー | In-vehicle power supply |
| JP5234052B2 (en) * | 2010-04-27 | 2013-07-10 | 株式会社デンソー | Power supply |
| JP2014177213A (en) * | 2013-03-15 | 2014-09-25 | Denso Corp | On-vehicle power supply system |
| JP6221796B2 (en) * | 2014-02-07 | 2017-11-01 | 株式会社デンソー | Battery unit and power supply system |
| JP6421605B2 (en) * | 2015-01-13 | 2018-11-14 | 株式会社デンソー | Control device for internal combustion engine |
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2015
- 2015-04-15 JP JP2015083130A patent/JP6582509B2/en active Active
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- 2016-04-11 CN CN201610221595.2A patent/CN106043176B/en active Active
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101407180A (en) * | 2007-10-11 | 2009-04-15 | 李尔公司 | Dual energy-storage for a vehicle system |
| CN102687370A (en) * | 2009-10-14 | 2012-09-19 | 宝马股份公司 | Energy storage system for the electrical energy supply of consumers in a vehicle |
| JP5387383B2 (en) * | 2009-12-18 | 2014-01-15 | 株式会社デンソー | In-vehicle power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016207269A (en) | 2016-12-08 |
| DE102016205999A1 (en) | 2016-11-17 |
| CN106043176A (en) | 2016-10-26 |
| JP6582509B2 (en) | 2019-10-02 |
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