CN113942462A - High-voltage method for driving door of new energy automobile - Google Patents
High-voltage method for driving door of new energy automobile Download PDFInfo
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- CN113942462A CN113942462A CN202111298984.2A CN202111298984A CN113942462A CN 113942462 A CN113942462 A CN 113942462A CN 202111298984 A CN202111298984 A CN 202111298984A CN 113942462 A CN113942462 A CN 113942462A
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- voltage
- contactor
- new energy
- voltage system
- energy automobile
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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
- B60R16/023—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 transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
Abstract
The invention belongs to the technical field of new energy automobile high-voltage systems, and relates to a high-voltage method for a new energy automobile driving door; the method comprises the following steps: step S1: unlocking the vehicle by the electronic key; step S2: the VCU detects the main cab door state, and step S3: the VCU controls the vehicle to enter a P gear and sends a start permission command; step S4: self-checking the high-voltage system; step S5: the main negative contactor and the pre-charging contactor in the high-voltage system are sequentially attracted; step S6: the main positive contactor is attracted and the pre-charging contactor is disconnected under the condition that the pre-charging is finished, and the high-voltage system is electrified and finished; according to the high-voltage operation control method, based on the high-voltage scheme on the driving door of the new energy automobile, the VCU can control the high-voltage operation on the automobile through the state of the main driving door, so that when a driver enters the cab and needs to drive the automobile, the high-voltage system is powered on, the automobile can be started at any time, and the driving experience is improved.
Description
Technical Field
The invention belongs to the technical field of new energy automobile high-voltage systems, and relates to a high-voltage method for a new energy automobile driving door.
Background
In recent years, the new energy automobile industry is vigorously developed in China, the new energy automobile is driven by using high-voltage electric energy, the traditional mode is that a driver operates a starting button and cooperates with a brake to carry out vehicle power-on operation, referring to fig. 2, but a high-voltage loop of the new energy automobile needs self-checking and pre-charging, compared with a traditional fuel vehicle, the new energy automobile cannot realize a 'striking' traveling state.
Disclosure of Invention
The invention aims to solve the problem that a new energy automobile can not be started and then can be quickly driven, when a driver opens an automobile door to enter the automobile, the automobile starts to be electrified to work in a high-voltage system, and when the driver needs to strike fire to start the automobile, the high-voltage system of the automobile is electrified to finish, so that the automobile can be driven at any time. A high-voltage method for a new energy automobile driving door is provided.
In order to solve the technical problems, the invention is realized by adopting the following technical scheme, which is described by combining the accompanying drawings as follows:
it is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
A high-voltage method for a new energy automobile driving door comprises the following steps:
step S1: unlocking the vehicle by the electronic key;
step S2: the VCU detects the status of the main cab door,
step S3: the VCU controls the vehicle to enter a P gear and sends a start permission command;
step S4: self-checking the high-voltage system;
step S5: the main negative contactor and the pre-charging contactor in the high-voltage system are sequentially attracted;
step S6: and the main positive contactor is attracted and the pre-charging contactor is disconnected under the pre-charging completion condition, so that the high-voltage system is electrified and completed.
Further, after the main cab door is opened for a period of time and closed, the VCU controls the vehicle to enter P range and sends a start permission command.
Further, the VCU detects the state of the door of the main cab, when a starting command is allowed to be sent out, the high-voltage system carries out self-checking, the main negative contactor and the pre-charging contactor are attracted without problems in self-checking, and the high-voltage system carries out pre-charging;
further, after the X capacitor in the motor controller reaches the specified required voltage, the main positive contactor is attracted and the pre-charging contactor is disconnected, and the high-voltage system is electrified.
Compared with the prior art, the invention has the beneficial effects that:
based on the high-voltage scheme on the new energy automobile driving door, the VCU can control high-voltage operation on the automobile through the state of the main driving door, so that when a driver enters a cab and needs to drive the automobile, a high-voltage system is powered on to be completed, the automobile can be started at any time, and driving experience is improved.
Drawings
The invention is further described with reference to the accompanying drawings in which:
FIG. 1 is a flow chart of a high-voltage scheme on a driving door of a new energy automobile according to the invention;
fig. 2 is a flowchart illustrating a conventional method for a vehicle power-on operation performed by a driver operating a start button and cooperating with a brake.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the present invention.
The invention is described in detail below with reference to the attached drawing figures:
the invention relates to a novel high-voltage system power-on triggering scheme of a new energy automobile, which adopts a main driving door to be opened and closed to control the power-on operation of the high-voltage system.
According to the high-voltage scheme for the new energy automobile, the high-voltage system is electrified and operated through the opening and closing state of the automobile door, so that the automobile can be quickly started by a driver, and the operation experience of the automobile is improved.
The embodiment is described with reference to fig. 1, based on a new energy automobile door high-voltage switching scheme, after a vehicle is unlocked by an electronic key, a VCU is awakened and detects a door state of a main cab, after the door is opened and closed for a short time, the VCU controls the vehicle to enter a P-range and send a start permission command, then a vehicle high-voltage system starts self-checking, a main negative contactor and a pre-charging contactor are attracted without problems, the high-voltage system is pre-charged, after the pre-charging is completed, a main positive contactor is closed and the pre-charging contactor is disconnected at the same time, at the moment, the vehicle high-voltage system is powered on and completed, and when the driver needs to drive the vehicle, the vehicle can be started quickly without waiting.
A high-voltage scheme for a new energy automobile driving door is realized by the following steps;
step S1: the VCU is unlocked and awakened through a key;
step S2: the VCU detects the state of the door of the main cab, and controls the vehicle to enter a P gear and send a start permission command after the door of the main cab is opened for a period of time and closed;
step S3: when a starting command is allowed to be sent out, the high-voltage system carries out self-checking, the main negative contactor and the pre-charging contactor are attracted without problems in the self-checking, and the high-voltage system carries out pre-charging;
step S4: and after the X capacitor in the motor controller reaches the specified required voltage, attracting the main positive contactor and disconnecting the pre-charging contactor, and completing the electrification of the high-voltage system.
The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims. And those not described in detail in this specification are well within the skill of those in the art.
Claims (4)
1. A high-voltage method for a new energy automobile driving door is characterized by comprising the following steps:
step S1: unlocking the vehicle by the electronic key;
step S2: the VCU detects the status of the main cab door,
step S3: the VCU controls the vehicle to enter a P gear and sends a start permission command;
step S4: self-checking the high-voltage system;
step S5: the main negative contactor and the pre-charging contactor in the high-voltage system are sequentially attracted;
step S6: and the main positive contactor is attracted and the pre-charging contactor is disconnected under the pre-charging completion condition, so that the high-voltage system is electrified and completed.
2. The high-pressure method for the new energy automobile driving door according to claim 1, characterized by comprising the following steps:
the VCU detects the state of the main cab door, and controls the vehicle to enter a P gear and send a start permission command after the main cab door is opened for a period of time and closed.
3. The high-pressure method for the new energy automobile driving door according to claim 1, characterized by comprising the following steps:
when the starting command is allowed to be sent out, the high-voltage system carries out self-checking, the main negative contactor and the pre-charging contactor are attracted in a self-checking problem-free mode, and the high-voltage system carries out pre-charging.
4. The high-pressure method for the new energy automobile driving door according to claim 1, characterized by comprising the following steps:
and after the X capacitor in the motor controller reaches the specified required voltage, attracting the main positive contactor and disconnecting the pre-charging contactor, and completing the electrification of the high-voltage system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111298984.2A CN113942462A (en) | 2021-11-04 | 2021-11-04 | High-voltage method for driving door of new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111298984.2A CN113942462A (en) | 2021-11-04 | 2021-11-04 | High-voltage method for driving door of new energy automobile |
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| CN113942462A true CN113942462A (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111298984.2A Pending CN113942462A (en) | 2021-11-04 | 2021-11-04 | High-voltage method for driving door of new energy automobile |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109249811A (en) * | 2018-08-29 | 2019-01-22 | 北京新能源汽车股份有限公司 | A kind of electric automobile high-voltage power-on and power-off control method, device and automobile |
| CN109398152A (en) * | 2018-11-01 | 2019-03-01 | 芜湖奇达动力电池系统有限公司 | Plug-in hybrid-power automobile battery system high pressure preliminary filling control method |
| CN110386082A (en) * | 2018-04-20 | 2019-10-29 | 比亚迪股份有限公司 | The starting control method and system of vehicle and vehicle |
| CN110901585A (en) * | 2019-12-11 | 2020-03-24 | 海马新能源汽车有限公司 | Vehicle induction power-on method without starting switch and system thereof |
| WO2021139782A1 (en) * | 2020-01-10 | 2021-07-15 | 长城汽车股份有限公司 | Pre-charging control system and method for electric vehicle and high-voltage power-on control system |
-
2021
- 2021-11-04 CN CN202111298984.2A patent/CN113942462A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110386082A (en) * | 2018-04-20 | 2019-10-29 | 比亚迪股份有限公司 | The starting control method and system of vehicle and vehicle |
| CN109249811A (en) * | 2018-08-29 | 2019-01-22 | 北京新能源汽车股份有限公司 | A kind of electric automobile high-voltage power-on and power-off control method, device and automobile |
| CN109398152A (en) * | 2018-11-01 | 2019-03-01 | 芜湖奇达动力电池系统有限公司 | Plug-in hybrid-power automobile battery system high pressure preliminary filling control method |
| CN110901585A (en) * | 2019-12-11 | 2020-03-24 | 海马新能源汽车有限公司 | Vehicle induction power-on method without starting switch and system thereof |
| WO2021139782A1 (en) * | 2020-01-10 | 2021-07-15 | 长城汽车股份有限公司 | Pre-charging control system and method for electric vehicle and high-voltage power-on control system |
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