CN102648580A - Circuit assembly for a motor vehicle - Google Patents
Circuit assembly for a motor vehicle Download PDFInfo
- Publication number
- CN102648580A CN102648580A CN2010800367951A CN201080036795A CN102648580A CN 102648580 A CN102648580 A CN 102648580A CN 2010800367951 A CN2010800367951 A CN 2010800367951A CN 201080036795 A CN201080036795 A CN 201080036795A CN 102648580 A CN102648580 A CN 102648580A
- Authority
- CN
- China
- Prior art keywords
- motor
- control unit
- load
- circuit arrangement
- controllable switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/027—Details with automatic disconnection after a predetermined time
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
Abstract
The invention relates to a circuit assembly for a motor vehicle. The circuit assembly comprises an electric motor. The electric motor comprises a control unit, wherein the control unit is designed to actuate the electric motor, in particular a stator of the electric motor, for rotating the rotor. According to the invention, the circuit assembly comprises a controllable switch with a control connection. The controllable switch is connected, in particular in a separable manner, on the input side to a battery potential of an on-board power supply system of the motor vehicle. The controllable switch is connected on the output side to the electric load, in particular the electric motor, preferably to the control unit of the electric motor.; The control unit has a control input for receiving an activation signal for activating the load, in particular in the case of an electric motor for rotating a rotor of the electric motor. The control unit is connected to the control connection of the controllable switch and designed to apply a switch signal to the control connection to activate the load depending on the activation signal.
Description
Technical field
The present invention relates to a kind of circuit arrangement of motor vehicle.Circuit arrangement has load, for example motor.The motor especially motor of electronic commutation has the particularly rotor of permanent magnetism.Motor has control unit, and wherein control unit is designed to: the stator of control motor, especially motor is to be used to make said rotor rotation.
Background technology
Have problems electric loading in known from prior art, motor vehicle, the for example motor: the electric loading that comprises control unit is connected with the onboard power system of motor vehicle constantly, and therefore is connected with the cell voltage potential of onboard power system.When the circuit arrangement of electric loading is in the motor vehicle not etch-proof position; For example be in as load under the situation in the zone in motor car engine cabin at the radiator ventilation blower; The load meeting contacts with dabbling when in the travels down that is moistened by rain; And during the halted state of motor vehicle, electric loading continues to keep being connected with onboard power system.Load switches to on-state or off-state by control unit based on activation signal.During off-state, Leakage Current possibly flow to the vehicle earth terminal of onboard power system from the load wiring that is connected with onboard power system.
Possibly cause battery discharge unfriendly thus.Disadvantageously in addition be, have only when by loading on the operating current that consumes in service when being exceeded that load is the fuse and onboard power system disconnection through being connected in series with load.Disadvantageous is that the Leakage Current littler than operating current possibly cause motor vehicle and damage or trigger battery discharge.
By the known a kind of control device of DE 20 2,006 013 422U1, this control device is used for being controlled at motor vehicle can be by the adjusting mechanism of motor operation.This control device is connected with the relay that is used to connect motor, and is designed to: for relay Loading Control voltage to be used to activate relay.
Summary of the invention
According to the present invention, the circuit arrangement that starts said type has and has the controllable switch of controlling wiring, preferred relay or semiconductor switch.This controllable switch is connected, especially can be disconnected to be connected with the cell voltage potential (Batteriepotenzial) of the onboard power system of motor vehicle at input side.This controllable switch is connected with electric loading, especially motor at outlet side, preferably is connected with the control unit of motor.Control unit has the control input end, said control input end be used to receive be used for activating load, especially under the situation of motor, be used to make the activation signal of the rotor rotation of motor.Control unit is connected with the control wiring of controllable switch, and is set for: apply connection signal to be used to activate load for the control wiring based on said activation signal.
Through this circuit arrangement, the control unit of load itself, especially load can produce the connection signal that is used to activate load.This connection signal advantageously consumes little current, thereby the switching circuit that is used to produce connection signal can have fuse, and the blowout current of this fuse is less than the blowout current of the fuse of the operating current that is used to protect load.
When the wiring of the control unit of load, especially load contacts with dabbling of moisture, for example saliferous; And when Leakage Current flows to vehicle body through dabbling of saliferous and and when flowing to the earth terminal of onboard power system through vehicle body, through protecting less insurance division, the especially fuse of insurance division of operating current to protect Leakage Current with respect to being used for.When the cut-out electric current of Leakage Current over insurance portion, especially through the given in advance cut-out current value of fuse, thereby then fuse can interrupt control circuit and is stoped battery discharge.
Circuit arrangement a kind of preferred embodiment in, make current circuit that said controllable switch is connected with load, particularly motor at outlet side than longer at the stator and the electrical connection section between the control unit of load, preferred motor.Thus, preferred control unit, preferably as the part of load be placed in load, particularly motor near, wherein, controllable switch can advantageously be arranged in the etch-proof position in the motor vehicle, for example away from load.
Circuit arrangement a kind of preferred embodiment in, the housing of control unit and motor, preferably with the stator mechanical connection.Can advantageously make motor by cost thus.
Circuit arrangement a kind of preferred embodiment in, the control input end of control unit is designed to be connected with data/address bus.Thus, load, particularly motor can advantageously be encased in the data/address bus-system of motor vehicle.Data/address bus is fieldbus preferably, especially LIN-Bus (local area network (LAN)-bus (LIN=Local-Area-Network local area network (LAN))) or CAN-Bus (controller local area network-bus (CAN=Controller-Area-Network controller local area network)) or PMW-holding wire (pulse width modulation-holding wire).
The invention still further relates to a kind of motor vehicle that has according to the circuit arrangement of aforementioned type.In said motor vehicle, relay preferably is placed in etch-proof position.In addition preferably, load, for example motor are positioned in not etch-proof position.Thus, load advantageously low cost be connected with motor vehicle economically.Therefore, for example the wiring of motor and motor need not be closed under situation about expending especially, and therefore prevents to dabble or condensed water.
The invention still further relates to electric loading, the especially method of motor in motor vehicle of a kind of activation in motor vehicle, preferably by the circuit arrangement of aforementioned type.In said method, load has the control unit with load especially mechanical connection.Preferably, controllable switch, especially relay or semiconductor switch are compared the etch-proof better position that is placed in motor vehicle with load in said method.In said method, in step, produce the activation signal that is used to activate load.In next method step, produce the connection signal that is used to operate said controllable switch, especially relay or semiconductor switch based on activation signal, and therefore will be used to make the operating current of said load running to be switched to said load.Through said method, the leakage current that can be advantageously the wiring from load be flow to the onboard power system earth terminal of vehicle limits.
Said method a kind of preferred embodiment in, activation signal is the signal of data/address bus or the signal of PWM-holding wire (PWM=pulse width modulation).Data/address bus is fieldbus, especially CAN-Bus or LIN-Bus preferably.
Said method a kind of preferred embodiment in, load is the motor of motor, especially radiator ventilation blower or motor vehicle servo steering system.Through said method, load, especially radiator ventilation blower or servo steering system are not avoided being dabbled with not needing to expend especially.
Description of drawings
By accompanying drawing and other embodiment the present invention is described below.Other of circuit arrangement preferred embodiment draws by described characteristic in the dependent claims and by the characteristic described in the description of drawings below.
Fig. 1 shows the embodiment of the circuit arrangement that is used for automobile-use, and it has electric loading and relay, and this relay can activate through control line routing overhead itself;
Fig. 2 shows the embodiment that the method that is used to make the circuit arrangement operation that has motor and controllable switch is used.
Embodiment
Fig. 1 has schematically shown the embodiment of the circuit arrangement 1 that is used for motor vehicle 3.In this embodiment, circuit arrangement 1 have have stator 10 motor as load.In the present embodiment, stator 10 has the stator coil of three Y-connections, and promptly stator coil 12,14 and 16.Can consider that also stator is that triangle connects, or direct current machine is as motor, for example series electric motor.Motor has rotor 11 and control unit 18.Control unit 18 has power output stage 20 and the processing unit 22 that is connected with power output stage 20.Processing unit 22 forms through for example microprocessor, microcontroller or FPGA (field programmable gate array).Control unit 18 is designed for stator coil 12,14 and 16 galvanizations of giving stator 10 by processing unit 22 and power output stage 20 in the following manner: stator 10 can generate the rotating magnetic field that the rotor 11 that is used to make motor rotates.
Rotor 11 is connected with ventilation blower 17 by motor shaft 15.In the present embodiment, ventilation blower 17 is radiator ventilation blowers of the radiator 5 of motor vehicle 3.The servo steering system that yet can consider to be connected with motor shaft 15, glass regulator or other cannot not be arranged on anti-ly the electric device of the position that dabbles or corrode.
Circuit arrangement 1 also has relay 30.Relay 30 has relay coil 32 and the switch that is connected with relay coil 32 effects.The switch of relay 30 has at least two switch contacts, and wherein first switch contact of switch is connected with wiring 38, and second contact of switch is connected with wiring 39.Wiring 39 is connected with the wiring 44 of onboard power system 40 through insurance division 46.For example, wiring 44 is wiring of the guiding positive potential of onboard power system, and it for example is known as terminals 30 according to DIN-standard 72552.Onboard power system 40 also has earth terminal 42.Relay coil 32 utilizes first wiring 34 to be connected with earth terminal 42, and utilizes second wiring 36 to be connected with the control output end 24 of control unit 18 through connection line 52, and said second wiring is corresponding with described control wiring before.Control unit 18 is designed to: the activation signal that receives based on the input 26 through control unit 18 generates connection signal, and through control output end 24 and connection line 52 this connection signal is sent to relay 30 at outlet side.Relay 30, especially relay coil 32 can make the switch closure of relay 30 based on the connection signal that receives through connection line 52.Control unit 18 is useful on the wiring 28 of positive potential.The wiring 28 that is used for positive potential is connected with power output stage 20.Therefore, can be provided for making the operating current of stator 10 operations of motor for power output stage 20 through wiring 28.Wiring 28 is connected with the wiring 38 of the switch of relay 30 through connection line 54.Connection line 54 corresponding to aforesaid current circuit and be designed to conduct load, the operating current of motor in the present embodiment.
If by No. 32 closures of relay coil, the operating current that then is used to make power output stage 20 operations is from onboard power system 40 flow through second wiring of wiring 44, insurance division 46, relay 30, the close switch of relay 30, first wiring 38 of relay 30 and the wiring 28 of connection line 54 to control unit 18 based on the connection signal that receives through connection line 52 for the switch of relay 30.Operating current further from wiring 28 through power output stage 20 and from power output stage 20, especially flow to the earth terminal of power output stage 20 from the switching transistor of power output stage 20.
Circuit arrangement also has control unit 48.Control unit 48 is designed to: the operation of the parts of controller motor-car 3, thus for example control the operation of motor, especially internal combustion engine.Control unit 48 is connected with control input end 26 by connecting portion 50, especially data/address bus 50 or PMW-holding wire.Data/address bus 50 for example can be CAN-Bus or LIN-Bus.Processing unit 22 for example has the unshowned in the accompanying drawings interface that is connected with data/address bus 50 of being used for.
Power output stage 20 is connected with processing unit 22 through connection line 56.Power output stage 20 output through connection line 57 be connected with stator coil 16, pass through connection line 58 is connected with stator coil 14 and be connected with stator coil 12 through connection line 59.In the present embodiment, connection line 57,58 and 59 is shorter with the connection line 54 of the wiring 28 of motor control unit 18 than the wiring 38 of relay 30 respectively.Therefore, relay can advantageously be placed in the motor vehicle 3, is placed in the present embodiment in the endwall region of motor vehicle 3, to prevent to dabble 60.Dabble and 60 may touch motor with stator 10 and control unit 18.The Leakage Current 62 that is represented by dotted lines for example possibly flow to the earth terminal 42 of vehicle ground connection from wiring 28.If motor vehicle stops, and this for example the internal combustion engine of motor vehicle 3 be not in running status, then wiring 39 can be connected with the positive potential of the wiring 44 of onboard power system 40 through insurance division 46.
Control unit 48 for example can be connected through the wiring of insurance division with onboard power system 40 in Fig. 1 with processing unit 22 not shownly, and cut-out electric current, the especially blowout current of this insurance division is little more a lot of than cut-out electric current, the especially blowout current of insurance division 46.For example, this wiring is corresponding to the terminals 15 according to DIN-standard 72552.
Because the relay 30 that is not activated does not advantageously have Leakage Current 62 to flow to earth terminal 42 from wiring 28.If control unit 18 receives the activation signal that is used to activate ventilation blower 17 through control input end 26, then control unit 18 can send the connection signal that is used to activate relay 30 through control output end 24.In this way, control unit 18 is connected the operating current be used to move ventilation blower 17 itself based on activation signal.
Fig. 2 illustrates the embodiment that the method for the load that is used for operating in motor vehicle is used, especially by circuit arrangement shown in Figure 11.In the method, load has the control unit that is connected with load machinery.In addition, in said method, controllable switch, especially relay or semiconductor switch are compared the etch-proof better position that is arranged on motor vehicle with load.In said method, in step 80, produce the activation signal that is used to activate load.In next step 82, produce the connection signal that is used to operate controllable switch based on this activation signal, and the operating current that in step 84, will be used for running load by controllable switch is switched to load.
In step 86, the leakage current that the wiring from load is flow to the onboard power system earth terminal of motor vehicle limits.This leakage current for example can be by insurance division, especially fuse restriction, and wherein, the limiting value that is used for leakage current is less than the operating current that is used to make load running.For example, activation signal is the signal of the signal of PWM-holding wire or the signal of data/address bus, especially CAN-Bus or LIN-Bus.
Load for example is the motor of radiator ventilation blower, the motor of glass regulator or servo steering system.Other embodiment that is used for load is the load that is placed in the starting motor-driven vehicle cabin, for example the drive unit of electrical fuel injection pump or anti-lock braking system, steer motor, especially servo steering system, onboard power system control appliance, battery-supervising device, especially battery-charged state-supervising device, Vehicular illumination system, automotive headlamp, especially gas discharge-headlight with at least one incandescent lamp or light-emitting diode, for example have an xenon.
Claims (10)
1. be used for the circuit arrangement (1) of motor vehicle (3), said circuit arrangement has the motor (10 of motor (10,18), especially electronic commutation; 18); Wherein, said motor (10,18) has rotor and control unit; So control unit is designed to: the control motor is to be used to that said rotor (11) is rotated
It is characterized in that,
Said circuit arrangement (1) has controllable switch (30), particularly relay (30) or the semiconductor switch that has control wiring (36); Wherein said controllable switch (30) is connected with the cell voltage potential (44) of the onboard power system (40) of said motor vehicle (3) and at outlet side (38) and said motor (28 at input side (39); 18; 20), particularly said control unit (18,20) is connected, wherein said control unit (18) has and is used for receiving the control input end (26) that is used for making the activation signal that said rotor (11) rotates; And wherein said control unit (18; 24) be connected with the control wiring (36) of said controllable switch (30), and be designed to: apply connection signal to be used to activate said motor (10,11) for said control wiring (36) based on said activation signal.
2. circuit arrangement according to claim 1 (1),
It is characterized in that,
Make said controllable switch (30) longer than stator (10) with the electrical connection section between the said control unit (20,18) at said motor at the current circuit (54) that outlet side (38) is connected with said motor (20,10).
3. according to each described circuit arrangement (1) in the aforementioned claim,
It is characterized in that,
The housing mechanical connection of said control unit (18,20) and said motor (10,11).
4. according to each described circuit arrangement (1) in the aforementioned claim,
It is characterized in that,
The control input end (36) of said control unit (18) is designed to be connected with data/address bus (50).
5. circuit arrangement according to claim 4 (1),
It is characterized in that,
Said data/address bus (50) is a fieldbus, especially local area network (LAN)-bus or controller local area network-bus or pulse width modulation-holding wire.
6. the motor vehicle (3) that has each described circuit arrangement (1) in the aforementioned claim,
It is characterized in that,
Controllable switch (30) is positioned in the etch-proof position of motor vehicle (3).
7. be used for activating electric loading (10 at motor vehicle (3); 11), the method for motor (10) especially; Particularly by means of according to each described circuit arrangement (1) in the aforementioned claim, in said method, said load (10) has control unit (18) and especially mechanically is connected with control unit (18); And in said method; Controllable switch (30), particularly relay (30) or semiconductor switch are compared the etch-proof better position that is placed in motor vehicle with said load (10), and wherein in said method, in step (80), produce the activation signal that is used to activate said load (10); In next step (82); Produce the connection signal that is used to operate said controllable switch (30) based on activation signal, and will be used to make the operating current of said load (10) operation to be switched to said load (10) (84) by said controllable switch (30).
8. method according to claim 7,
It is characterized in that,
Said activation signal is the signal of data/address bus (50).
9. according to claim 7 or 8 described methods,
It is characterized in that,
Said data/address bus (50) is CAN-Bus or LIN-Bus.
10. according to each described method in the claim 7 to 9,
It is characterized in that,
Said load is the motor (10) of radiator ventilation blower (17) or servo steering system.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009028747A DE102009028747A1 (en) | 2009-08-20 | 2009-08-20 | Circuit arrangement for a motor vehicle |
| DE102009028747.7 | 2009-08-20 | ||
| PCT/EP2010/059785 WO2011020650A2 (en) | 2009-08-20 | 2010-07-08 | Circuit assembly for a motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102648580A true CN102648580A (en) | 2012-08-22 |
Family
ID=43473656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800367951A Pending CN102648580A (en) | 2009-08-20 | 2010-07-08 | Circuit assembly for a motor vehicle |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2467933A2 (en) |
| CN (1) | CN102648580A (en) |
| DE (1) | DE102009028747A1 (en) |
| WO (1) | WO2011020650A2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014103369B4 (en) * | 2014-03-12 | 2023-02-23 | Minebea Mitsumi Inc. | Control circuit for an electric motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0946812A (en) * | 1995-07-31 | 1997-02-14 | Fuji Electric Co Ltd | Electric system for electric vehicle |
| DE102004039392B3 (en) * | 2004-08-13 | 2005-09-15 | Cornelius Peter | Detecting current in electrical device driven by field effect transistor using pulse width modulation involves deriving current from pulse width modulation, source-daring voltage, ambient temperature and supply voltage |
| CN101072009A (en) * | 2006-04-17 | 2007-11-14 | 株式会社电装 | Vehicle generator control device |
| CN101171742A (en) * | 2005-05-11 | 2008-04-30 | 丰田自动车株式会社 | Alternating-current voltage output apparatus |
| JP2008263763A (en) * | 2007-04-16 | 2008-10-30 | Toyota Motor Corp | Vehicle semiconductor relay diagnosing apparatus and method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19952112A1 (en) * | 1999-10-29 | 2001-06-07 | Audi Ag | Circuit arrangement to reduce rest current of idle vehicle; has devices to determine battery charge state and vehicle operation state and individual control units for number of electrical users |
| DE202006013422U1 (en) | 2006-08-31 | 2008-01-03 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg | Control device for controlling an actuatable by means of an electric motor adjusting mechanism in a motor vehicle |
| DE102006042657A1 (en) * | 2006-09-12 | 2008-03-27 | Daimler Ag | Power supply circuit for a means of transport |
-
2009
- 2009-08-20 DE DE102009028747A patent/DE102009028747A1/en not_active Withdrawn
-
2010
- 2010-07-08 EP EP10728718A patent/EP2467933A2/en not_active Withdrawn
- 2010-07-08 CN CN2010800367951A patent/CN102648580A/en active Pending
- 2010-07-08 WO PCT/EP2010/059785 patent/WO2011020650A2/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0946812A (en) * | 1995-07-31 | 1997-02-14 | Fuji Electric Co Ltd | Electric system for electric vehicle |
| DE102004039392B3 (en) * | 2004-08-13 | 2005-09-15 | Cornelius Peter | Detecting current in electrical device driven by field effect transistor using pulse width modulation involves deriving current from pulse width modulation, source-daring voltage, ambient temperature and supply voltage |
| CN101171742A (en) * | 2005-05-11 | 2008-04-30 | 丰田自动车株式会社 | Alternating-current voltage output apparatus |
| CN101072009A (en) * | 2006-04-17 | 2007-11-14 | 株式会社电装 | Vehicle generator control device |
| JP2008263763A (en) * | 2007-04-16 | 2008-10-30 | Toyota Motor Corp | Vehicle semiconductor relay diagnosing apparatus and method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011020650A2 (en) | 2011-02-24 |
| WO2011020650A3 (en) | 2012-05-18 |
| EP2467933A2 (en) | 2012-06-27 |
| DE102009028747A1 (en) | 2011-02-24 |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120822 |