CN113459819A - Starting circuit for electric automobile, electric automobile and starting method of electric automobile - Google Patents
Starting circuit for electric automobile, electric automobile and starting method of electric automobile Download PDFInfo
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- CN113459819A CN113459819A CN202110839563.XA CN202110839563A CN113459819A CN 113459819 A CN113459819 A CN 113459819A CN 202110839563 A CN202110839563 A CN 202110839563A CN 113459819 A CN113459819 A CN 113459819A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L1/00—Supplying electric power to auxiliary equipment of 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
Abstract
The invention discloses a starting circuit for an electric automobile, the electric automobile and a starting method of the electric automobile. The starting circuit for the electric automobile comprises a switching device, an auxiliary load module and a power module. Wherein the switching device comprises a first contact, a second contact, a third contact and a fourth contact. The first contact and the second contact are connected with a power supply, the auxiliary load module is connected with the third contact, and the power module is connected with the fourth contact. When the starting circuit is in a starting mode, the first contact is communicated with the third contact, and the second contact is communicated with the fourth contact, so that the power supply supplies power to the auxiliary load module and the power module. Through the design, when the starting circuit is adjusted to the starting mode, the automobile auxiliary load still keeps being conducted with the low-voltage power supply, so that the problem that the automobile auxiliary load is disconnected in the starting process is solved, and the experience of a user is improved.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a starting circuit for an electric automobile, an electric automobile and a starting method for the electric automobile.
Background
With the gradual shortage of energy and the increasing increase of environmental pollution, electric vehicles with energy-saving and environmental-protection effects have gradually become the main direction of future vehicle development. The electric automobile is a vehicle which takes a vehicle-mounted power supply as power and drives wheels to run by using a motor, and meets various requirements of road traffic and safety regulations.
In an automobile system, an ignition switch is provided with a starting circuit capable of freely opening or closing an ignition coil, and is a main gate for controlling a whole automobile circuit system. The ignition switch of the mainstream electric automobile at present is still a power distribution mode which continues to use four ignition switch gears of the traditional fuel oil automobile: LOCK gear, ACC gear, ON gear, and START gear. When the ignition switch is in the LOCK gear, no electrical equipment is connected. When the ignition switch is in the ACC gear, auxiliary electric equipment of the automobile, such as a radio, a window, a cigarette lighter and the like, is powered on. When the ignition switch is in an ON gear, all the vehicle-mounted electric equipment (including all the electric equipment in an ACC gear and partial electric equipment such as an oil meter and the like) is powered ON. When the ignition switch is in the START gear, the running part of the electric equipment is powered on, and the electric starter is powered on, but the electric equipment related to the ACC gear is powered off.
Traditional fuel oil vehicle is because there is this device of electric starter, and the starter needs great electric current when the vehicle STARTs, consequently can cut off whole car ACC shelves power and guarantee the power supply of starter when the key hits START shelves, like radio, electric window, cigar lighter etc. influence driver and experience. Therefore, when the starting circuit is used for an electric automobile, the power supply of the auxiliary load can be cut off in the starting process, the auxiliary electric equipment of the automobile can stop working for a short time due to power failure, the user experience is influenced, and inconvenience is brought to a user.
Disclosure of Invention
In order to solve the problem that the power supply of an auxiliary load is disconnected in a starting mode of an electric automobile in the related art, which brings inconvenience to a user, the invention provides a starting circuit for the electric automobile, the electric automobile and a starting method of the electric automobile, which can solve the problem that the auxiliary load is disconnected when the electric automobile is in the starting mode.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
in one aspect, the present invention provides a starting circuit for an electric vehicle, including:
a switching device including a first contact, a second contact, a third contact, and a fourth contact; the first contact and the second contact are connected with a power supply;
an auxiliary load module connected with the third contact; and
a power module connected with the fourth contact;
when the starting circuit is in a starting mode, the first contact is communicated with the third contact, and the second contact is communicated with the fourth contact, so that the power supply supplies power to the auxiliary load module and the power module.
In some embodiments, the switching device is an ignition switch.
In some embodiments, an electric vehicle includes a high voltage system and a low voltage system; the high-pressure system is used for providing power, and the low-pressure system is used for controlling the whole vehicle;
when the starting circuit is in a power-on mode, the electric automobile automatically detects the states of the high-voltage system and the low-voltage system; after the high-voltage system and the low-voltage system are powered on and ready, the starting circuit enters a starting ready state so as to enter a starting mode.
In some embodiments, the auxiliary load modules include an audio system, seat adjustments, cigarette lighter, backup power, DVD, and power sunroof.
In some embodiments, when the power supply is in the power-on mode, the power supply preferentially supplies power to the sound system after supplying power to the power module under the condition that the power supply is limited.
In some embodiments, the power module includes an electric machine; the switching device further comprises a fifth contact which is connected with a load assisting the starting of the motor;
when the starting circuit is in a starting mode, the first contact is connected with the fifth contact, so that the power supply supplies power to the load for assisting the motor to start.
In some embodiments, the switching device further comprises a sixth contact; the sixth contact is connected with a load assisting the motor to operate;
when the starting circuit is in a power-on mode, the second contact is connected with the sixth contact, so that the power supply supplies power to the load assisting the motor to run.
In another aspect, the invention provides an electric vehicle, which is characterized by comprising the starting circuit for the electric vehicle.
In another aspect, the present invention provides a starting method for an electric vehicle, including:
when the starting circuit is in a power-on mode, acquiring the state of a high-voltage system;
judging the state of the high-pressure system; if the high-voltage system is powered on and ready, the starting circuit enters a starting ready state;
when the starting circuit is in a starting mode, the first contact is controlled to be communicated with the third contact, and the second contact is controlled to be communicated with the fourth contact, so that the power supply supplies power to the auxiliary load module and the power module.
In some embodiments, the starting method for an electric vehicle further comprises:
when the starting circuit is in a power-on mode, acquiring the state of a low-voltage system;
when starting circuit is in the start mode, control first contact and third contact intercommunication, and control second contact and fourth contact intercommunication to make the power supply for auxiliary load module and power module power supply, include:
judging the states of the high-pressure system and the low-pressure system; and if the high-voltage system and the low-voltage system are both powered on and ready, the starting circuit enters a starting ready state.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
in the starting circuit for the electric automobile and the electric automobile thereof, as the electric automobile does not need an electric starter to start an engine, the starting circuit is designed in such a way that when the electric automobile needs to be started and the starting circuit is controlled to be in a starting mode, a power module of the electric automobile is connected with a power supply, and a contact connected with an auxiliary load of the automobile is still kept conducted with a low-voltage power supply. Therefore, when the motor of the electric automobile is normally started, the auxiliary load of the automobile is continuously conducted, the problem of disconnection of the automobile in the starting process is avoided, and the experience of a user is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a partial circuit schematic diagram of a starting circuit for an electric vehicle in an embodiment of the present invention.
In the figure, 1, a first contact; 2. a second contact; 3. a third contact; 4. a fourth contact; 5. a fifth contact; 6. a sixth contact; 7. a first fuse; 8. a second fuse.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
Some embodiments of the present invention provide a starting circuit for an electric vehicle including a switching device, an auxiliary load module, and a power module. Wherein the switching device comprises a first contact 1, a second contact 2, a third contact 3 and a fourth contact 4; the first contact 1 and the second contact 2 are connected for power supply. An auxiliary load module is connected with the third contact 3 and a power module is connected with the fourth contact 4. When the starting circuit is in the starting mode, the first contact 1 is communicated with the third contact 3, and the second contact 2 is communicated with the fourth contact 4, so that the power supply supplies power to the auxiliary load module and the power module.
Specifically, the switching device is an ignition switch of an electric automobile, which comprises an input end and an output end and can be switched on when the starting circuit is in different modes. Further, the input end of the switching device comprises a first contact 1 and a second contact 2, and the first contact 1 and the second contact 2 are respectively connected with a low-voltage power supply of the electric automobile through the fuse.
The output of the switching device has four contacts including a third contact 3, a fourth contact 4, a fifth contact 5 and a sixth contact 6. Further, the third contact 3 is connected with an auxiliary load module, the fourth contact 4 is connected with a power module of the electric vehicle, the fifth contact 5 is connected with a load assisting the start of the power module, and the sixth contact 6 is connected with a load assisting the normal operation of the power module.
Specifically, the auxiliary load module is an auxiliary function device of the electric vehicle in the using process, and specifically comprises a sound system, a seat adjustment device, a cigarette lighter, a standby power supply, a DVD, an electric sunroof and the like.
Specifically, the power module is a motor assembly of the electric automobile and is used for providing driving traction for the electric automobile.
Specifically, the power supply is a low-voltage storage battery of the electric automobile and is used for providing power supply output for the starting circuit.
In some embodiments, the starting circuit for the electric automobile provided by the invention has four working modes, including a locking mode, an auxiliary load running mode, a power-on mode and a starting mode. And in different modes, the contact points of the starting circuit are gated.
In the locked mode, the input terminal of the switching device is disconnected from the output terminal, and thus all electrical devices connected to the output terminal are not turned on.
In the auxiliary load mode of operation, the first contact 1 is in communication with the third contact 3, so that the low voltage power supply supplies power to the auxiliary load. In this mode, the electric vehicle is in a key-off state, and only the auxiliary load devices are operating.
In the power-on mode, the first contact 1 is communicated with the third contact 3 and the fifth contact 5, and the second contact 2 is communicated with the sixth contact 6, so that the low-voltage power supply supplies power to an auxiliary load, a load for starting the auxiliary power module and a load for operating the auxiliary power module, and all electric equipment of the electric automobile except the motor can be operated.
In addition, in this mode, the electric vehicle self-checks the states of the high-voltage system and the low-voltage system, and after the high-voltage system and the low-voltage system are both powered on to be ready, the starting circuit enters a ready state. After the starting circuit enters the ready state, the electric automobile can be controlled to enter the starting mode.
In the start mode, the first contact 1 is in communication with the third contact 3, the fifth contact 5, and the second contact 2 is in communication with the fourth contact 4, so that the low voltage power supply supplies power to the auxiliary load, the load where the auxiliary power module is started, and the power module. At the moment, the motor of the electric automobile is normally started, and meanwhile, the automobile auxiliary load is kept to be continuously conducted, so that the problem of automobile auxiliary disconnection in the starting process is solved, and the experience of a user is improved.
In some embodiments, the auxiliary load module is powered with priority in situations where power is limited, where the sound system is powered preferentially. Therefore, in the starting process, the sound system with high utilization rate still keeps powered on, and other auxiliary loads with high utilization rates are disconnected such as seat adjustment and cigarette lighter, so that the experience of a user is guaranteed.
In some embodiments, the switching device is an ignition switch of an electric vehicle, and for a specific arrangement of the ignition switch, reference is made to the following specific embodiments.
As shown in fig. 1, the ignition switch of the present embodiment follows the power distribution manner of four ignition switch gears of a conventional fuel-powered vehicle, including LOCK gear, ACC gear, ON gear, and START gear. Specifically, the control pattern of the four gear positions of the ignition switch is as follows,
LOCK gear: the starting circuit is in a locking mode, at which time the engine is stopped and the steering wheel is locked, and the key can only be removed from this position;
ACC gear: the starting circuit is in an auxiliary equipment operation mode, at the moment, through the control of an ignition switch, the electric equipment controlled by the gear can operate when an ignition key reaches the gear, and the electric equipment generally realized by the gear has electric adjusting seat, sound system, wiper water spraying system, cigarette lighter, seat heating, electric skylight and the like;
ON gear: the starting circuit is in a power-on mode, and the internal circuit is divided into two lines of IG1 and IG2, specifically, the fifth contact 5 is connected with an IG1 line, and the sixth contact is connected with an IG2 line. In normal driving conditions, other ignition switch controlled devices can be operated except for motor start. The electric appliances of the IG1 circuit have the functions of rearview mirror adjustment, a combination instrument, an air bag, a constant-speed cruise system, reverse imaging, headlights and control power supplies of various control systems (ECU, ABS, TCS, BCM, tire pressure, electric steering and the like). The electrical appliances of the IG2 line have the functions of electric heating defrosting, air conditioning blower and the like.
START gear: the starting circuit is in a starting mode, the motor is started at the moment, and the key returns to an ON gear after the key is released.
Fig. 1 is a schematic diagram of an ignition switch of a starting circuit for an electric vehicle in an embodiment of the present invention. As shown in fig. 1, in the ignition switch of the present embodiment, a first contact 1 and a second contact 2 are power supply inputs, and a fifth contact 5 is connected to a motor, a motor ECU (electric power consumption device related to motor start). The third contact 3 is connected to an ACC unloading relay and then connected to an auxiliary load of the vehicle. The auxiliary loads of the automobile comprise seat adjustment, a cigarette lighter, a standby power supply, a radio, a DVD (digital video disk), an electric skylight and the like. The IG2 is connected to an IG unloading relay air conditioner (electric equipment irrelevant to the starting of the motor), and the fourth contact 4 is used for starting control and is connected with the motor of the electric automobile.
Specifically, the battery of the low-voltage system of the electric vehicle is 12V or 24V, wherein the low-voltage battery of the ordinary passenger electric vehicle is 12V, and the low-voltage battery of the commercial electric vehicle is 24V. In the present embodiment, since a general passenger electric vehicle is taken as an example, the low-voltage battery of the electric vehicle of the present embodiment is 12V.
The first contact 1 and the second contact 2 are connected with a low-voltage battery through leads. A first fuse 7 is connected between the first contact 1 and the low-voltage storage battery in series, and a second fuse 8 is connected between the second contact 2 and the low-voltage storage battery in series, so that a circuit is prevented from being disconnected when current is overloaded, and the storage battery is protected. In the present embodiment, the blowing current of the first fuse 7 and the second fuse 8 is 60A. Of course, the type of the fuse can be selected according to the actually designed ignition switch power, and is not limited herein.
Therefore, as shown in fig. 1, the connection line of the ignition switch in four modes is as follows:
when the ignition switch is in LOCK mode, the first contact 1 is not connected to all the output contacts. When the ignition switch is in the ACC position, the first contact 1 is connected to the third contact 3, so that auxiliary loads (such as an audio system, a cigarette lighter, a power sunroof, etc.) of the vehicle are powered on. When the ignition switch is in an ON gear, the first contact 1 is connected with the third contact 3 and the fifth contact 5, the second contact 2 is connected with the sixth contact 6, and all electric equipment of the whole vehicle can operate. When the ignition switch is in a START gear position, the first contact 1 is connected with the third contact 3 and the fifth contact 5, the second contact 2 is connected with the fourth contact 4, the motor is electrified and started, electrical equipment related to the starting of the motor is also electrified (the electrical equipment is connected with the fifth contact 5), and automobile auxiliary loads (such as a sound system, a cigarette lighter, a power sunroof and the like) are kept electrified.
In the ignition switch of the related art, since the starter of the conventional energy vehicle needs to consume a large power, the ACC power is generally turned off when the key is screwed to the START gear to ensure a sufficient starting power. Under the starting state, the sound system can stop working for a short time because of outage, influence user experience and feel. When the ignition switch is used in the electric automobile, an electric starter is not needed to start the engine when the electric automobile is started, but the motor is directly started, so that the starting power is greatly reduced. In the starting process, because the power generated by the low-voltage system can meet the requirement that the motor is started and the auxiliary load of the automobile is used at the same time, the ignition system provided by the embodiment of the invention is designed in such a way that when the ignition switch is adjusted to the START gear, the third contact 3 connected with the auxiliary load of the automobile is still kept to be conducted with the low-voltage storage battery, the motor of the electric automobile is ensured to be normally started, and meanwhile, the auxiliary load of the automobile is kept to be continuously conducted, so that the problem of auxiliary disconnection of the automobile in the starting process is avoided, and the experience of a user is improved.
In the use process of the electric automobile of this embodiment, when the user steps on the condition that brake pedal or other preconditions satisfy to when screwing the key to "START gear", electric automobile self-checking high, low pressure system state gets into "ready state" simultaneously, therefore can be when the key is in START gear, keeps the power switch-on of ACC gear, thereby keeps electric accessories such as radio normal use, promotes user's experience and feels.
In another aspect, some embodiments of the present invention provide an electric vehicle having a starting circuit that: when the starting circuit is in the starting mode, the contacts connected to the auxiliary loads of the vehicle remain in conduction with the low-voltage battery.
Through such design, the electric automobile of this embodiment is at the start-up in-process, and the motor can normally start, and the auxiliary load of car (like audio system, cigar lighter, power sunroof etc.) keeps circular telegram simultaneously to avoided the problem of the auxiliary load disconnection of car in the start-up in-process, improved user's experience and felt.
In another aspect, some embodiments of the present invention provide a starting method for an electric vehicle, including:
and S1, acquiring the state of the high-voltage system when the starting circuit is in the power-on mode.
And S2, acquiring the state of the low-voltage system when the starting circuit is in a power-on mode.
And S3, judging the states of the high-voltage system and the low-voltage system, and if the high-voltage system and the low-voltage system are both powered on and ready, enabling the starting circuit to enter a ready-to-start state.
And S4, when the starting circuit is in the starting mode, controlling the first contact to be communicated with the third contact and controlling the second contact to be communicated with the fourth contact so as to enable the power supply to supply power to the auxiliary load module and the power module.
In a specific operation process, when a user inserts a key into an ignition switch of the electric automobile, the key is screwed to an 'ON gear' under the condition that a brake pedal is stepped down or other precondition is met, and at the moment, a starting circuit of the electric automobile enters a power-ON mode. Under the power-on mode of the electric automobile, the states of a high-voltage system and a low-voltage system in the electric automobile are automatically detected and obtained. If the high-voltage system and the low-voltage system are powered on and ready, the electric automobile enters a ready state (namely ready), and lights are displayed through an automobile instrument panel. When a user screws the key to the START gear, the starting circuit of the electric automobile enters a starting mode, and the auxiliary load module and the power module are communicated with the low-voltage power supply. Therefore, by the starting method, the auxiliary load of the automobile is kept continuously on while the normal starting of the electric automobile is ensured, the phenomenon that the auxiliary load of the automobile is disconnected in the starting process is avoided, and the experience of a user is improved.
It should be understood that various features of the above-described embodiments may be combined in any combination, and for the sake of brevity, all possible combinations of features in the above-described embodiments may not be described in detail, but rather, the combination of features which are not inconsistent with each other should be construed as being within the scope of the present disclosure.
The above description is only for the purpose of illustrating the preferred embodiments of the present disclosure and is not to be construed as limiting the scope of the present disclosure, but rather is intended to cover all equivalent structural changes made by applying the teachings of the present disclosure to the accompanying drawings.
Claims (10)
1. A starting circuit for an electric vehicle, comprising:
a switching device including a first contact, a second contact, a third contact, and a fourth contact; the first contact and the second contact are connected with a power supply;
an auxiliary load module connected with the third contact; and
a power module connected with the fourth contact;
when the starting circuit is in a starting mode, the first contact is communicated with the third contact, and the second contact is communicated with the fourth contact, so that the power supply supplies power to the auxiliary load module and the power module.
2. The starting circuit for an electric vehicle according to claim 1, wherein the switching device is an ignition switch.
3. The starting circuit for an electric vehicle according to claim 1, wherein the electric vehicle includes a high voltage system and a low voltage system; the high-pressure system is used for providing power, and the low-pressure system is used for controlling the whole vehicle;
when the starting circuit is in a power-on mode, the electric automobile automatically detects the states of the high-voltage system and the low-voltage system; after the high-voltage system and the low-voltage system are powered on and ready, the starting circuit enters a starting ready state so as to enter a starting mode.
4. The starting circuit for an electric vehicle according to claim 1, wherein the auxiliary load module includes an audio system, a seat adjuster, a cigarette lighter, a backup power supply, a DVD, and a power sunroof.
5. The starting circuit for the electric vehicle as claimed in claim 4, wherein under the condition of limited power of a power supply, when the starting circuit is in a starting mode, the power supply supplies power to the power module and then preferentially supplies power to the sound system.
6. The starting circuit for an electric vehicle of claim 1 wherein said power module comprises an electric motor; the switching device further comprises a fifth contact which is connected with a load assisting the starting of the motor;
when the starting circuit is in a starting mode, the first contact is connected with the fifth contact, so that the power supply supplies power to the load for assisting the motor to start.
7. The starting circuit for an electric vehicle according to claim 6, wherein said switching device further comprises a sixth contact; the sixth contact is connected with a load assisting the motor to operate;
when the starting circuit is in a power-on mode, the second contact is connected with the sixth contact, so that the power supply supplies power to the load assisting the motor to run.
8. An electric vehicle characterized by comprising the starting circuit for an electric vehicle as claimed in any one of claims 1 to 7.
9. A starting method for an electric vehicle, comprising:
when the starting circuit is in a power-on mode, acquiring the state of a high-voltage system;
judging the state of the high-pressure system; if the high-voltage system is powered on and ready, the starting circuit enters a starting ready state;
when the starting circuit is in a starting mode, the first contact is controlled to be communicated with the third contact, and the second contact is controlled to be communicated with the fourth contact, so that the power supply supplies power to the auxiliary load module and the power module.
10. The starting method for the electric vehicle according to claim 9, characterized in that the method further comprises:
when the starting circuit is in a power-on mode, acquiring the state of a low-voltage system;
when starting circuit is in the start mode, control first contact and third contact intercommunication, and control second contact and fourth contact intercommunication to make the power supply for auxiliary load module and power module power supply, include:
judging the states of the high-pressure system and the low-pressure system; and if the high-voltage system and the low-voltage system are both powered on and ready, the starting circuit enters a starting ready state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110839563.XA CN113459819A (en) | 2021-07-23 | 2021-07-23 | Starting circuit for electric automobile, electric automobile and starting method of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110839563.XA CN113459819A (en) | 2021-07-23 | 2021-07-23 | Starting circuit for electric automobile, electric automobile and starting method of electric automobile |
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| CN113459819A true CN113459819A (en) | 2021-10-01 |
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| CN202110839563.XA Withdrawn CN113459819A (en) | 2021-07-23 | 2021-07-23 | Starting circuit for electric automobile, electric automobile and starting method of electric automobile |
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| CN207902187U (en) * | 2018-02-24 | 2018-09-25 | 普天新能源车辆技术有限公司 | A kind of electric vehicle low pressure self saving control circuit |
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2021
- 2021-07-23 CN CN202110839563.XA patent/CN113459819A/en not_active Withdrawn
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|---|---|---|---|---|
| JP2005287242A (en) * | 2004-03-30 | 2005-10-13 | Toyota Motor Corp | Power supply unit for vehicle |
| JP2008219953A (en) * | 2007-02-28 | 2008-09-18 | Honda Motor Co Ltd | Electric vehicle |
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| CN104691445A (en) * | 2013-12-09 | 2015-06-10 | 北汽福田汽车股份有限公司 | Low-voltage power supply system used for vehicle and control method of low-voltage power supply system |
| CN104527545A (en) * | 2015-01-04 | 2015-04-22 | 中通客车控股股份有限公司 | Electric vehicle safety starting method and system |
| CN105691209A (en) * | 2016-04-08 | 2016-06-22 | 同济大学 | Electrical system for controller with distribution type architecture and power supply redundancy electric intelligent vehicle |
| CN206968420U (en) * | 2017-04-20 | 2018-02-06 | 深圳市沃特玛电池有限公司 | A kind of charging pile and electric automobile matching system |
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Application publication date: 20211001 |
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| WW01 | Invention patent application withdrawn after publication |