CN111031484B - Remote control system and method for electric automobile - Google Patents
Remote control system and method for electric automobile Download PDFInfo
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- CN111031484B CN111031484B CN201911381903.8A CN201911381903A CN111031484B CN 111031484 B CN111031484 B CN 111031484B CN 201911381903 A CN201911381903 A CN 201911381903A CN 111031484 B CN111031484 B CN 111031484B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/20—Means to switch the anti-theft system on or off
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
- B60R25/40—Features of the power supply for the anti-theft system, e.g. anti-theft batteries, back-up power supply or means to save battery power
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Computing Systems (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a remote control system of an electric automobile, which comprises: a battery management system BMS installed in the electric vehicle; a vehicle-mounted T-Box installed in the electric vehicle and connected to the battery management system BMS; and the control center platform is arranged at the far end and is connected with the vehicle-mounted T-Box. A control method of the remote control system of the electric automobile is also disclosed. The invention improves the safety of the vehicle.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a remote control system of an electric automobile and a control method thereof.
Background
In order to prevent the situations that the customer does not return the car in the future, arrears the rental money and is not connected with the customer, the electric car rental company needs to lock the car through a remote command and forbid the high-voltage system of the electric car from working. The customer can also unlock the vehicle through a remote command when paying a rent or meeting an emergency, so that the vehicle can be recovered to a normal state.
The existing remote vehicle locking scheme of the electric vehicle is characterized in that when the vehicle is started, a request starting signal is sent to a control center platform through a GPS module, and the control center platform receives the request starting signal and judges whether a start permission instruction is sent to the GPS module according to the received request starting signal so as to control the starting of the vehicle. The scheme needs a process of requesting the control center platform and waiting for response when starting, so that the vehicle starting time is long, and the vehicle starting time is more serious if a network communication fault is met. Secondly, when the control center platform needs to lock the vehicle, the vehicle may be started in some unsafe areas, for example, the vehicle is temporarily started on the road, and the vehicle cannot be started normally, which may cause vehicle and/or personal safety threat and may cause traffic jam.
Disclosure of Invention
One of the technical problems to be solved by the present invention is: the remote control system for the electric automobile is provided for overcoming the defects in the prior art.
The second technical problem to be solved by the present invention is: a control method of the remote control system of the electric automobile is provided.
A remote control system of an electric vehicle as a first aspect of the present invention includes:
the battery management system BMS is installed in the electric automobile, automatically awakens at intervals after the automobile key switch is powered off, generates a vehicle-mounted T-Box awakening signal in an awakening period and sends the signal to the outside, and controls the electric automobile to be switched to a locking state or an unlocking state according to a vehicle control command when the battery management system BMS receives the vehicle control command;
the vehicle-mounted T-Box is installed in the electric automobile and connected with the battery management system BMS, when the vehicle-mounted T-Box receives a vehicle-mounted T-Box wake-up signal sent by the battery management system BMS, the vehicle-mounted T-Box wakes up and generates a vehicle state acquisition request to send out during wake-up, and when the vehicle-mounted T-Box receives a vehicle control command, the vehicle-mounted T-Box sends the received vehicle control command to the battery management system BMS; and
and when the control center platform receives a vehicle state acquisition request sent by the vehicle-mounted T-Box, the control center platform generates a vehicle control instruction according to the vehicle state acquisition request and feeds the generated vehicle control instruction back to the vehicle-mounted T-Box.
In a preferred embodiment of the present invention, a lock counter is provided in the battery management system BMS, and the battery management system BMS recognizes a vehicle control command sent by the on-board T-Box during each automatic wake-up period; when the vehicle control command is a command for requesting to lock the vehicle and the count recorded by the vehicle locking counter is smaller than a set threshold, the battery management system BMS controls the count of the vehicle locking counter to be increased by 1; when the vehicle control command is a vehicle locking command and the count recorded by the vehicle locking counter is greater than or equal to a set threshold value, the battery management system BMS controls the electric vehicle to be switched to a vehicle locking state; when the vehicle control command is a request unlocking command and the count recorded by the locking counter is smaller than a set threshold value, the battery management system BMS adjusts the count of the locking counter to 0 and controls the electric vehicle to be switched to an unlocking state.
In a preferred embodiment of the present invention, a T-Box timeout counter is disposed in the battery management system BMS, the battery management system BMS generates a timeout diagnostic signal during each automatic wake-up period and transmits the timeout diagnostic signal to the on-board T-Box, and the on-board T-Box receives the timeout diagnostic signal and then transmits a feedback signal to the battery management system BMS; when the feedback signal received by the battery management system BMS is abnormal or the feedback signal cannot be received due to overtime, the battery management system BMS controls the count of the T-Box overtime counter to be increased by 1; when the count recorded by the T-Box timeout counter is greater than or equal to a set threshold, the battery management system BMS controls the electric automobile to be switched to a locked state; and when the vehicle control command is a command for requesting unlocking and the count recorded by the T-Box timeout counter is smaller than a set threshold, the battery management system BMS adjusts the count of the T-Box timeout counter to 0 and controls the electric automobile to be switched to an unlocking state.
In a preferred embodiment of the present invention, the onboard T-Box is communicatively connected to the battery management system BMS through a CAN bus.
In a preferred embodiment of the present invention, the control center platform is communicatively connected to the onboard T-Box via a wireless network.
In a preferred embodiment of the present invention, the wireless network is one or more of a 3G cellular network, a 4G cellular network, or a 5G cellular network.
A control method of a remote control system of an electric vehicle as a second aspect of the present invention includes the steps of:
step S10, the battery management system BMS automatically wakes up at intervals after the automobile key switch is powered off, and generates a vehicle-mounted T-Box wake-up signal in the wake-up period and sends the signal to the vehicle-mounted T-Box;
step S20, the vehicle-mounted T-Box receives the vehicle-mounted T-Box wake-up signal sent by the battery management system BMS for wake-up, and generates a vehicle state acquisition request during the wake-up period and sends the request to the control center platform;
step S30, after receiving a vehicle state acquisition request sent by the vehicle-mounted T-Box, the control center platform generates a vehicle control instruction according to the vehicle state acquisition request and feeds the generated vehicle control instruction back to the vehicle-mounted T-Box;
step S40, the vehicle-mounted T-Box sending the received vehicle control command to the battery management system BMS;
and step S50, the battery management system BMS controls the electric automobile to be switched to a locked state or an unlocked state according to the received vehicle control command.
In a preferred embodiment of the present invention, in the step S10, the battery management system BMS further performs the following steps during the wake-up period:
step S11, respectively reading the current recorded counts of the car locking timer and the T-Box overtime counter;
step S12, generating a timeout diagnosis signal, sending the timeout diagnosis signal to the vehicle-mounted T-Box, and waiting for a feedback signal of the vehicle-mounted T-Box;
step S13, judging whether the received feedback signal is abnormal or the feedback signal can not be received due to overtime, if so, controlling the count of the T-Box overtime counter to be increased by 1, and if not, entering the step S14;
and step S14, recognizing the received vehicle control command, judging whether the vehicle control command is a vehicle locking request command, and if so, controlling the count of the T-Box timeout counter to be increased by 1.
In a preferred embodiment of the present invention, when the battery management system BMS is woken up by an external wake-up source, the battery management system BMS performs the steps of:
step S61, respectively reading the current recorded counts of the car locking timer and the T-Box overtime counter;
step S62, judging whether the count recorded by the T-Box timeout counter is greater than or equal to a set threshold value, if so, controlling the electric automobile to be switched to a locked state, and if not, entering step S63;
step S63, judging whether the count recorded by the locking timer is larger than or equal to a set threshold value, if so, controlling the electric automobile to be switched to a locking state, otherwise, entering the step S64;
and step S64, allowing the rechargeable battery of the electric automobile to be normally charged with high voltage, and adjusting the count recorded by the locking timer and the T-Box timeout counter to be 0.
In a preferred embodiment of the invention, the external wake-up source is one of an ignition wake-up, a fast-charge wake-up or a slow-charge wake-up.
Due to the adoption of the technical scheme, the invention has the beneficial effects that: after receiving a vehicle locking request of a control center platform, in order to meet the requirement of vehicle locking safety, a battery management system BMS judges whether a vehicle is stopped in a safe area or not by timing awakening, and if so, a relay of a power battery is disconnected to lock the vehicle. For the electric automobile, the battery management system BMS and the vehicle-mounted T-Box are both standard, and the invention directly uses standard hardware, does not increase the cost of the hardware and has the characteristics of simplicity and effectiveness. The invention confirms the vehicle locking request command sent by the control center platform for many times by the timing awakening of the battery management system BMS, and ensures that the vehicle is stopped in a safe area. Compared with the prior art, the invention has the advantages of safety, simple control and convenient implementation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a remote control system of an electric vehicle according to the present invention.
Fig. 2 is a flow chart diagram of the control method of the present invention.
Fig. 3 is a timing wake-up flowchart of the battery management system BMS of the present invention.
Fig. 4 is a flowchart of the battery management system BMS of the present invention being woken up by an external wake-up source.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.
Referring to fig. 1, a remote control system for an electric vehicle is shown, which includes a battery management system BMS100, an on-board T-Box200, and a control center platform 300.
The battery management system BMS100 is installed in an electric vehicle, and automatically wakes up at intervals after a key switch of the vehicle is powered off, and generates an on-vehicle T-Box wake-up signal during the wake-up period to transmit the signal. When the battery management system BMS100 receives the vehicle control command, the battery management system BMS100 controls the electric vehicle to be switched to the locked state or the unlocked state according to the vehicle control command. In the present embodiment, the automatic wake-up interval of the battery management system BMS100 is 1 hour, and it enters the sleep state after all the instructions are performed.
The vehicle-mounted T-Box200 is installed in the electric vehicle and is communicatively connected to the battery management system BMS100 through a CAN bus. When the vehicle-mounted T-Box200 receives the vehicle-mounted T-Box wake-up signal transmitted from the battery management system BMS100, the vehicle-mounted T-Box200 wakes up and generates a vehicle state acquisition request during the wake-up to transmit it, and when the vehicle-mounted T-Box200 receives a vehicle control command, the vehicle-mounted T-Box200 transmits the received vehicle control command to the battery management system BMS 100.
The control center platform 300 is arranged at a far end and is in communication connection with the vehicle-mounted T-Box200 through a wireless network, when the control center platform 300 receives a vehicle state acquisition request sent by the vehicle-mounted T-Box200, the control center platform 300 generates a vehicle control instruction according to the vehicle state acquisition request, and feeds the generated vehicle control instruction back to the vehicle-mounted T-Box 200. In this embodiment, the wireless network may be one or more of a 3G cellular network, a 4G cellular network, or a 5G cellular network.
A lock counter 110 is provided in the battery management system BMS100, and the battery management system BMS100 recognizes a vehicle control command transmitted from the in-vehicle T-Box200 during each automatic wake-up period. When the vehicle control command is a command requesting for locking the vehicle and the count recorded by the lock counter 110 is less than a set threshold, the battery management system BMS100 controls the count of the lock counter 110 to be increased by 1; when the vehicle control command is a vehicle locking command and the count recorded by the vehicle locking counter 110 is greater than or equal to a set threshold, the battery management system BMS100 controls the electric vehicle to switch to a vehicle locking state; when the vehicle control command is a request unlocking command and the count recorded by the lock counter 110 is less than a set threshold, the battery management system BMS100 adjusts the count of the lock counter 110 to 0 and controls the electric vehicle to switch to the unlocked state. In the present embodiment, the set threshold value set in the lock counter 110 is 3.
In order to prevent the user from unplugging the vehicle-mounted T-Box200 or causing a problem with the vehicle-mounted T-Box200, the battery management system BMS100 is further provided with a T-Box timeout counter 120, the battery management system BMS100 generates a timeout diagnostic signal during each automatic wake-up period and transmits the timeout diagnostic signal to the vehicle-mounted T-Box200, and the vehicle-mounted T-Box200 receives the timeout diagnostic signal and then feeds back the signal to the battery management system BMS 100. When the feedback signal received by the battery management system BMS100 is abnormal or fails to receive the feedback signal due to timeout, the battery management system BMS100 controls the count of the T-Box timeout counter 120 to be increased by 1; when the count recorded by the T-Box timeout counter 120 is greater than or equal to the set threshold, the battery management system BMS100 controls the electric vehicle to switch to the locked state; when the vehicle control command is a request unlocking command and the count recorded by the T-Box timeout counter 120 is less than a set threshold, the battery management system BMS100 adjusts the count of the T-Box timeout counter 120 to 0 and controls the electric vehicle to switch to the unlocked state. In the present embodiment, the set threshold value set in the T-Box timeout counter 120 is 3.
Referring to fig. 2 in conjunction with fig. 1, there is shown a control method of a remote control system of an electric vehicle according to the present invention, including the steps of:
step S10, the battery management system BMS100 automatically wakes up at intervals after the automobile key switch is powered off, and generates a vehicle-mounted T-Box wake-up signal in the wake-up period and sends the signal to the vehicle-mounted T-Box 200;
step S20, the vehicle-mounted T-Box200 receives the vehicle-mounted T-Box wake-up signal sent by the battery management system BMS100 to wake up, and generates a vehicle state acquisition request during the wake-up period and sends the request to the control center platform 300;
step S30, after receiving a vehicle state acquisition request sent by the vehicle-mounted T-Box200, the control center platform 300 generates a vehicle control instruction according to the vehicle state acquisition request, and feeds the generated vehicle control instruction back to the vehicle-mounted T-Box 200;
step S40, the in-vehicle T-Box200 sends the received vehicle control command to the battery management system BMS 100;
in step S50, the battery management system BMS100 controls the electric vehicle to switch to the locked state or the unlocked state according to the received vehicle control command.
Referring to fig. 3 in conjunction with fig. 1, in step S10, the battery management system BMS100 further performs the following steps during the wake-up period:
step S11, respectively reading the current recorded counts of the car locking timer 110 and the T-Box timeout counter 120;
step S12, generating a timeout diagnosis signal to be sent to the vehicle-mounted T-Box200, and waiting for the vehicle-mounted T-Box200 to feed back the signal;
step S13, judging whether the received feedback signal is abnormal or the feedback signal can not be received due to overtime, if so, controlling the count of the T-Box overtime counter 120 to be increased by 1, and if not, entering the step S14;
and step S14, recognizing the received vehicle control command, judging whether the vehicle control command is a vehicle locking request command, and if so, controlling the count of the T-Box timeout counter 120 to be increased by 1.
Referring to fig. 4 in conjunction with fig. 1, when the battery management system BMS100 is awakened by the external wake-up source, which is one of ignition wake-up, fast charge wake-up, or slow charge wake-up, the battery management system BMS100 performs the following steps:
step S61, respectively reading the current recorded counts of the car locking timer 110 and the T-Box timeout counter 120;
step S62, judging whether the count recorded by the T-Box timeout counter 120 is greater than or equal to a set threshold, if so, controlling the electric automobile to be switched to a locked state, and if not, entering step S63;
step S63, determining whether the count recorded by the lock timer 110 is greater than or equal to a set threshold, if yes, controlling the electric vehicle to switch to the lock state, if no, entering step S64;
step S64, allowing the charging battery of the electric automobile to be normally charged with high voltage;
step S65, adjusting the count recorded by the lock timer 110 to 0;
in step S66, the count recorded by the T-Box timeout counter 120 is adjusted to 0.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A remote control system for an electric vehicle, comprising:
the battery management system BMS is installed in the electric automobile, automatically awakens at intervals after the automobile key switch is powered off, generates a vehicle-mounted T-Box awakening signal in an awakening period and sends the signal to the outside, and controls the electric automobile to be switched to a locking state or an unlocking state according to a vehicle control command when the battery management system BMS receives the vehicle control command;
the vehicle-mounted T-Box is installed in the electric automobile and connected with the battery management system BMS, when the vehicle-mounted T-Box receives a vehicle-mounted T-Box wake-up signal sent by the battery management system BMS, the vehicle-mounted T-Box wakes up and generates a vehicle state acquisition request to send out during wake-up, and when the vehicle-mounted T-Box receives a vehicle control command, the vehicle-mounted T-Box sends the received vehicle control command to the battery management system BMS; and
the control center platform is arranged at a far end and connected with the vehicle-mounted T-Box, and when the control center platform receives a vehicle state acquisition request sent by the vehicle-mounted T-Box, the control center platform generates a vehicle control instruction according to the vehicle state acquisition request and feeds the generated vehicle control instruction back to the vehicle-mounted T-Box;
a lock counter is arranged in the battery management system BMS, and the battery management system BMS identifies vehicle control instructions sent by the vehicle-mounted T-Box in each automatic wake-up period; when the vehicle control command is a command for requesting to lock the vehicle and the count recorded by the vehicle locking counter is smaller than a set threshold, the battery management system BMS controls the count of the vehicle locking counter to be increased by 1; when the vehicle control command is a vehicle locking command and the count recorded by the vehicle locking counter is greater than or equal to a set threshold value, the battery management system BMS controls the electric vehicle to be switched to a vehicle locking state; when the vehicle control command is a request unlocking command and the count recorded by the locking counter is smaller than a set threshold value, the battery management system BMS adjusts the count of the locking counter to 0 and controls the electric vehicle to be switched to an unlocking state.
2. The remote control system of an electric vehicle according to claim 1, wherein a T-Box timeout counter is provided in the battery management system BMS, the battery management system BMS generates a timeout diagnosis signal to transmit to the on-board T-Box during each automatic wake-up period, and the on-board T-Box performs a feedback signal to the battery management system BMS upon receiving the timeout diagnosis signal; when the feedback signal received by the battery management system BMS is abnormal or the feedback signal cannot be received due to overtime, the battery management system BMS controls the count of the T-Box overtime counter to be increased by 1; when the count recorded by the T-Box timeout counter is greater than or equal to a set threshold, the battery management system BMS controls the electric automobile to be switched to a locked state; and when the vehicle control command is a command for requesting unlocking and the count recorded by the T-Box timeout counter is smaller than a set threshold, the battery management system BMS adjusts the count of the T-Box timeout counter to 0 and controls the electric automobile to be switched to an unlocking state.
3. The remote control system of an electric vehicle according to claim 1, wherein the on-board T-Box is communicatively connected to the battery management system BMS through a CAN bus.
4. The remote control system of an electric vehicle of claim 1, wherein the control center platform is communicatively coupled to the onboard T-Box via a wireless network.
5. The remote control system of the electric vehicle according to claim 4, wherein the wireless network is one or more of a 3G cellular network, a 4G cellular network, or a 5G cellular network.
6. A control method of a remote control system of an electric vehicle according to any one of claims 1 to 5, characterized by comprising the steps of:
step S10, the battery management system BMS automatically wakes up at intervals after the automobile key switch is powered off, and generates a vehicle-mounted T-Box wake-up signal in the wake-up period and sends the signal to the vehicle-mounted T-Box;
step S20, the vehicle-mounted T-Box receives the vehicle-mounted T-Box wake-up signal sent by the battery management system BMS for wake-up, and generates a vehicle state acquisition request during the wake-up period and sends the request to the control center platform;
step S30, after receiving a vehicle state acquisition request sent by the vehicle-mounted T-Box, the control center platform generates a vehicle control instruction according to the vehicle state acquisition request and feeds the generated vehicle control instruction back to the vehicle-mounted T-Box;
step S40, the vehicle-mounted T-Box sending the received vehicle control command to the battery management system BMS;
and step S50, the battery management system BMS controls the electric automobile to be switched to a locked state or an unlocked state according to the received vehicle control command.
7. The control method according to claim 6, wherein in the step S10, the battery management system BMS further performs the following steps during a wake-up period:
step S11, respectively reading the current recorded counts of the car locking timer and the T-Box overtime counter;
step S12, generating a timeout diagnosis signal, sending the timeout diagnosis signal to the vehicle-mounted T-Box, and waiting for a feedback signal of the vehicle-mounted T-Box;
step S13, judging whether the received feedback signal is abnormal or the feedback signal can not be received due to overtime, if so, controlling the count of the T-Box overtime counter to be increased by 1, and if not, entering the step S14;
and step S14, recognizing the received vehicle control command, judging whether the vehicle control command is a vehicle locking request command, and if so, controlling the count of the T-Box timeout counter to be increased by 1.
8. The control method according to claim 7, wherein when the battery management system BMS is woken up by an external wake-up source, the battery management system BMS performs the steps of:
step S61, respectively reading the current recorded counts of the car locking timer and the T-Box overtime counter;
step S62, judging whether the count recorded by the T-Box timeout counter is greater than or equal to a set threshold value, if so, controlling the electric automobile to be switched to a locked state, and if not, entering step S63;
step S63, judging whether the count recorded by the locking timer is larger than or equal to a set threshold value, if so, controlling the electric automobile to be switched to a locking state, otherwise, entering the step S64;
and step S64, allowing the rechargeable battery of the electric automobile to be normally charged with high voltage, and adjusting the count recorded by the locking timer and the T-Box timeout counter to be 0.
9. The control method of claim 8, wherein the external wake-up source is one of an ignition wake-up, a fast-charge wake-up, or a slow-charge wake-up.
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| CN201911381903.8A CN111031484B (en) | 2019-12-27 | 2019-12-27 | Remote control system and method for electric automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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