A vehicle egress power down control method and system

Abstract

The application provides a vehicle leaving garage power-off control method and system, the method comprises the following steps: in response to the key leaving garage signal, the vehicle is powered on and the leaving garage action is executed, and the state machine signal is acquired; if the state machine signal is leaving garage success, the vehicle state monitoring signal is acquired in real time; if the vehicle state monitoring signal does not change within the preset first time length threshold, the vehicle is locked and powered off. The method provided by the application can determine that the vehicle is in the leaving garage success state through the state machine signal, and monitor the vehicle state when the vehicle successfully leaves the garage. If the vehicle state monitoring signal changes within the first time length threshold, that is, no human operation signal is monitored, it can be considered that the driver temporarily does not need to drive the vehicle or there is a false key leaving garage situation, at this time, the vehicle can be intelligently locked and powered off, avoiding the occurrence of vehicle power loss, and effectively solving the problem of false key leaving garage without power-off.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic / assisted driving, in particular to a vehicle out-of-garage power-off control method and system. BACKGROUND

[0002] The vehicle automatic driving assistance system refers to an intelligent automobile system for unmanned driving through a vehicle-mounted computer system, also known as an automatic driving system or unmanned driving system. The system relies on the cooperation of artificial intelligence, visual computing, radar, monitoring devices and global positioning systems to enable the computer to automatically and safely operate a motor vehicle without any human initiative.

[0003] The key remote out-of-garage function is an auxiliary function in the vehicle automatic driving assistance system, which is mainly used for the scene of inconvenient door opening and vehicle out-of-garage, and can remotely control the vehicle out-of-garage to facilitate the user to get on the vehicle. For the purpose of facilitating the use of the vehicle, the vehicle will not be powered off after the out-of-garage is successful. Therefore, in the actual use process of the key remote out-of-garage function, the user often mistakenly touches the out-of-garage function after parking and locking the vehicle, without knowing it. The vehicle remains powered on after the out-of-garage is successful, which greatly affects the user's experience of using the vehicle. SUMMARY

[0004] The present application aims to provide a vehicle out-of-garage power-off control method and system to solve the above technical problems, which realizes the vehicle out-of-garage power-off control through the monitoring of the vehicle state, to solve the problem of mistaken touch of the key out-of-garage without power-off.

[0005] In order to solve the above technical problems, the present application provides a vehicle out-of-garage power-off control method, comprising the following steps:

[0006] In response to the key out-of-garage signal, the vehicle is powered on and the out-of-garage action is performed, and the state machine signal is acquired;

[0007] If the state machine signal is out-of-garage successful, the vehicle state monitoring signal is acquired in real time;

[0008] If the vehicle state monitoring signal does not change within the preset first time threshold, the vehicle is locked and powered off.

[0009] The above scheme can determine that the vehicle is in the out-of-garage successful state through the state machine signal, and in the case of successful out-of-garage of the vehicle, the vehicle state is monitored. If the vehicle state monitoring signal changes within the first time threshold, i.e. no human operation signal is monitored, it can be considered that the driver temporarily does not need to drive the vehicle or there is a mistaken touch of the key out-of-garage. At this time, the vehicle can be intelligently locked and powered off to avoid the occurrence of vehicle power loss, which can effectively solve the problem of mistaken touch of the key out-of-garage without power-off.

[0010] Further, the state machine signal is determined to be successful, and the vehicle state monitoring signal is acquired in real time, including: within a preset second time length threshold, the vehicle performs the out-of-vehicle operation until the vehicle has no action request, and within a preset third time length threshold, the vehicle speed is kept at 0, the vehicle gear is kept in the parking gear, and the electronic hand brake is kept in the pulled-up state, then the state machine signal is determined to be successful, and the vehicle state monitoring signal is acquired in real time.

[0011] In the above scheme, the vehicle needs to cooperate with the internal actuators of the internal system to complete the out-of-vehicle operation, that is, there is a continuous action request during the out-of-vehicle process. When the second time length threshold is within the second time length threshold, and the state machine signal is not in the internal failure state or the external failure state, the vehicle has no action request, which can represent that the vehicle may be successfully out of the vehicle. To ensure the success of the vehicle out of the vehicle, a series of conditions are ensured, including keeping the vehicle speed at 0, keeping the vehicle gear in the parking gear, and keeping the electronic hand brake in the pulled-up state. By setting the third time length threshold, the above series of conditions are continuously met within the third time length threshold, which can effectively prevent misjudgment.

[0012] Further, the vehicle out-of-vehicle power-off control method further includes the following steps: determining that the state machine signal is in an internal failure state, an external failure state, or an out-of-vehicle failure state, then the vehicle is locked and powered off.

[0013] In the above scheme, if the key is mistakenly touched to out of the vehicle, there are many cases that can cause the vehicle to fail to out of the vehicle when the vehicle performs the out-of-vehicle operation, including but not limited to the internal failure state and the external failure state. At this time, by setting multiple out-of-vehicle failure states, it can be ensured that when the key is mistakenly touched to out of the vehicle, the vehicle can be locked and powered off to avoid the vehicle being powered off.

[0014] Further, the state machine signal is determined to be successful, and the vehicle state monitoring signal is acquired in real time, including: within a preset second time length threshold, the vehicle performs the out-of-vehicle operation until the vehicle has no action request, and within a preset third time length threshold, the vehicle speed is kept at 0, the vehicle gear is kept in the parking gear, and the electronic hand brake is kept in the pulled-up state, then the state machine signal is determined to be successful, and the vehicle state monitoring signal is acquired in real time.

[0015] Further, in response to the key out-of-vehicle signal, the vehicle is powered on and performs the out-of-vehicle operation, and the state machine signal is acquired, including: in response to the key out-of-vehicle signal, the vehicle is powered on and the vehicle state data and the external environment data are acquired; if the vehicle state data and the external environment data both satisfy the out-of-vehicle condition, the vehicle performs the out-of-vehicle operation, and the state machine signal is acquired.

[0016] The application further provides a vehicle egress power-off control system, comprising:

[0017] An egress execution module is configured to power on the vehicle and execute an egress action in response to the key egress signal, and obtain a state machine signal. A state determination module is configured to determine the state of the state machine signal. A state monitoring module is configured to obtain a vehicle state monitoring signal in real time. A power-off control module is configured to execute vehicle lockout and power off.

[0018] When the state determination module determines that the state machine signal is egress success, the state monitoring module obtains the vehicle state monitoring signal in real time. If the vehicle state monitoring signal does not change within a preset first time threshold, the power-off control module executes vehicle lockout and power off.

[0019] The system architecture provided by the above scheme is simple and easy to implement, and can quickly and effectively implement a vehicle egress power-off control method. If the vehicle state monitoring signal changes within the first time threshold, i.e., no human operation signal is monitored, it can be considered that the driver temporarily does not need to drive the vehicle or there is a false key egress operation. At this time, the vehicle can be intelligently locked out and powered off to avoid causing the vehicle to run out of power, and the problem of false key egress without power-off can be effectively solved.

[0020] Further, when the state determination module determines that the state machine signal is egress success, the state monitoring module obtains the vehicle state monitoring signal in real time, comprising:

[0021] Within a preset second time threshold, the vehicle executes the egress action until the vehicle has no action request. Within a preset third time threshold, the vehicle speed is kept at 0, the vehicle gear is kept at the parking gear, and the electronic handbrake is kept in the pulled-up state. The state determination module determines that the state machine signal is egress success, and the state monitoring module obtains the vehicle state monitoring signal in real time.

[0022] Further, the state determination module is further configured to determine that the state machine signal is an internal fault state, an external fault state, or an egress failure state. If the state determination module determines that the state machine signal is an internal fault state, an external fault state, or an egress failure state, the power-off control module executes vehicle lockout and power off.

[0023] Further, if the state determination module determines that the state machine signal is an internal fault state, an external fault state or a failed departure state, the vehicle is locked and powered off by the power-off control module, including: when it is detected that the vehicle system hardware or software fails, the state determination module determines that the state machine signal is an internal fault state; when it is detected that the associated system or associated actuator fails, the state determination module determines that the state machine signal is an external fault state; wherein: the associated system means the vehicle system related to the departure function; the associated actuator means the execution component related to the departure function; within a preset second time threshold, the vehicle performs the departure action and the vehicle continues to have the action request, the state determination module determines that the state machine signal is a failed departure state.

[0024] Further, the departure execution module is configured to power on the vehicle and perform a departure action in response to the key departure signal, and obtain a state machine signal, including: the departure execution module powers on the vehicle and obtains vehicle state data and external environment data in response to the key departure signal; if the vehicle state data and the external environment data both satisfy the departure condition, the departure execution module controls the vehicle to perform the departure action and obtains the state machine signal. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A vehicle departure power-off control method flow diagram is provided for an embodiment of the present application.

[0026] Figure 2 A vehicle departure power-off control system architecture diagram is provided for an embodiment of the present application. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] Please refer to Figure 1 The present embodiment provides a vehicle departure power-off control method, including the following steps:

[0029] S1: powering on the vehicle and performing a departure action in response to a key departure signal, and obtaining a state machine signal;

[0030] S2: determining that the state machine signal is a successful departure, and obtaining a vehicle state monitoring signal in real time;

[0031] S3: if the vehicle state monitoring signal does not change within a preset first time threshold, the vehicle is locked and powered off.

[0032] The embodiment can determine the vehicle to be in a successful departure state through the state machine signal, and in the case of successful departure of the vehicle, the vehicle state is monitored. If the vehicle state monitoring signal changes within the first time threshold, that is, no human operation signal is monitored, it can be considered that the driver temporarily does not need to drive the vehicle or there is a false key departure, at this time the vehicle can be intelligently locked and powered off to avoid causing the vehicle to be discharged, which can effectively solve the problem of false key departure without power-off.

[0033] Need to be explained, the first time threshold can be set to 30s, if no human operation signal is monitored within 30s, if the vehicle door is opened, the vehicle controller requests the vehicle to be locked and powered off.

[0034] In an embodiment, the power-on mode of the vehicle can include a local mode and a remote power-on mode. The local mode is a mode in which the driver steps on the brake in the vehicle to make the vehicle enter the preparation state, and the vehicle power-on is generally defaulted to this mode. The remote power-on mode is a power-on mode in which the driver uses the smart parking or smart departure through the key or the mobile phone APP. Among them, the power-on mode in response to the key departure signal is the remote power-on mode.

[0035] Further, the state machine signal is determined to be successful departure, and the vehicle state monitoring signal is acquired in real time, including: within a preset second time threshold, the vehicle performs a departure action until the vehicle has no action request, within a preset third time threshold, the vehicle speed is kept at 0, the vehicle gear is kept at the parking gear, and the electronic hand brake is kept in the pulled-up state, then the state machine signal is determined to be successful departure, and the vehicle state monitoring signal is acquired in real time.

[0036] In the embodiment, the vehicle internal system internal actuators need to cooperate to complete the departure of the vehicle, that is, there is a continuous action request during the departure process. When the second time threshold is within, and the state machine signal is not an internal fault state or an external fault state, the vehicle has no action request, which can represent that the vehicle may be successfully departed. To ensure the successful departure of the vehicle, a series of conditions are ensured, including that the vehicle speed is kept at 0, the vehicle gear is kept at the parking gear, and the electronic hand brake is kept in the pulled-up state. By setting the third time threshold, the above series of conditions are continuously met within the third time threshold, which can effectively prevent misjudgment.

[0037] In an embodiment, the third time threshold can be set to 1s. And in the specific implementation process, although the above series of conditions are met within 1s, the vehicle may also be delayed or unable to correctly identify due to signal interference, sensor failure and other factors, therefore a time interval can be added to ensure the accuracy of the state judgment, that is, when collecting the vehicle speed, the vehicle gear state and the electronic hand brake state, the collection time interval can be 200ms.

[0038] It should be noted that the signals of the vehicle speed, gear state and electronic hand brake state of the vehicle can be obtained by the systems or sensors built in the vehicle. For example, the GPS positioning system, wheel speed sensor and acceleration sensor of the vehicle can provide the vehicle position and motion state, which are used to determine whether the vehicle is in a moving state, vehicle speed, acceleration and the like; the gearbox control system or gear sensor of the vehicle can provide the gear state information, which is used to confirm whether the vehicle is in the parking gear; the electronic brake system and brake request module can provide the electronic hand brake state information, which is used to confirm whether the vehicle has stopped and the electronic hand brake has been pulled up; the EPS system can provide the steering request information, which can indirectly reflect that the vehicle has stopped when there is no steering request.

[0039] In an embodiment, the vehicle inaction request can be that the intelligent driving controller does not issue operation instructions to the actuators such as the electric power steering module (EPS) and acceleration request module, i.e., does not require the vehicle to perform steering, acceleration and the like.

[0040] Further, the vehicle out-of-garage power-down control method further includes the following steps: determining that the state machine signal is in an internal fault state, an external fault state or an out-of-garage failure state, and then locking the vehicle and powering down.

[0041] In the embodiment, if the key is mistakenly touched to exit the garage, there are various situations that can cause the out-of-garage failure when the vehicle performs the out-of-garage operation, including but not limited to the internal fault state and the external fault state. At this time, by setting various out-of-garage failure states, it is ensured that the vehicle can be locked and powered down when the key is mistakenly touched to exit the garage, thereby avoiding the situation of vehicle power loss.

[0042] Further, when the state machine signal is in an internal fault state, an external fault state or an out-of-garage failure state, the vehicle is locked and powered down, including: when it is detected that the internal hardware or software of the vehicle system fails, the state machine signal is determined to be in the internal fault state; when it is detected that the associated system or associated actuator fails, the state machine signal is determined to be in the external fault state; wherein: the associated system refers to the vehicle system related to the out-of-garage function; the associated actuator refers to the execution component related to the out-of-garage function; within a preset second time threshold, the vehicle performs the out-of-garage action and the vehicle continuously has an action request, and then the state machine signal is determined to be in the out-of-garage failure state.

[0043] In the embodiment, the actuators can include an electric power steering module EPS, a brake request module EBS, an electronic brake system EPB, a vehicle control system VCU, and an integrated body control module IBC, which can collectively complete the vehicle departure operation. Among them: the EPS is responsible for vehicle steering control; the EBS is responsible for vehicle braking control; the EPB is responsible for electronic handbrake control; the VCU is responsible for vehicle acceleration, deceleration and other power control; the IBC is responsible for realizing light, wiper, window control, unlocking and anti-lock, locking, locking and anti-lock control, power mode jump control, local mode door opening and power suppression control and other functions.

[0044] Further, in response to the key departure signal, the vehicle is powered on and the departure action is performed, and the state machine signal is obtained, including: in response to the key departure signal, the vehicle is powered on and vehicle state data and external environment data are obtained; if the vehicle state data and the external environment data both satisfy the departure condition, the vehicle performs the departure action and obtains the state machine signal.

[0045] In the embodiment, the vehicle state data can include vehicle power state data, gear state data, electronic handbrake state data, and brake system state data, which are detected by the electronic control unit (ECU) of the vehicle or related sensors. The external environment data can include surrounding obstacle detection data and road condition data to ensure the safety of the departure process. Among them, the surrounding obstacle detection data can be obtained by radar, camera and other sensors, and the road condition data can be obtained by vehicle navigation system or external data source.

[0046] In an embodiment, the state machine signal further includes an unready state, a ready state and an active state. Among them, the unready state means that the key remote departure function does not meet the running condition and is in an unactivatable state; the ready state means that the key remote departure function meets all the running conditions and is in an activatable state; when the key remote departure function meets the running condition, it should automatically jump from the unready state to the ready state; the active state means the state when the key remote departure function is activated.

[0047] See Figure 2 The embodiment provides a vehicle departure power-off control system, which comprises:

[0048] A departure execution module is configured to power on the vehicle and perform a departure action in response to a key departure signal, and obtain a state machine signal; a state determination module is configured to determine the state of the state machine signal; a state monitoring module is configured to obtain a vehicle state monitoring signal in real time; and a power-off control module is configured to perform vehicle locking and power-off.

[0049] When the state determination module determines that the state machine signal is a successful exit, the state monitoring module acquires the vehicle state monitoring signal in real time; if the vehicle state monitoring signal does not change within a preset first time threshold, the vehicle locking and power-off are executed by the power-off control module.

[0050] The system architecture provided by the embodiment is simple and easy to implement, and can quickly and effectively implement a vehicle exit power-off control method. The vehicle exit success state can be determined through the state machine signal, and the vehicle state is monitored when the vehicle successfully exits. If the vehicle state monitoring signal changes within the first time threshold, that is, no human operation signal is monitored, it can be considered that the driver temporarily does not need to drive the vehicle or there is a false key exit. At this time, the vehicle locking and power-off can be intelligently implemented to avoid the occurrence of vehicle power loss, and the problem of false key exit without power-off can be effectively solved.

[0051] In an embodiment, the power-on mode of the vehicle can include a local mode and a remote power-on mode. The local mode is a mode in which the driver steps on the brake in the vehicle to make the vehicle enter a preparation state, and the vehicle power-on is generally defaulted to this mode. The remote power-on mode is a power-on mode in which the driver uses intelligent parking or intelligent exit through a key or a mobile phone APP. The power-on mode in response to the key exit signal is the remote power-on mode.

[0052] Further, when the state determination module determines that the state machine signal is a successful exit, the state monitoring module acquires the vehicle state monitoring signal in real time, including:

[0053] Within a preset second time threshold, the vehicle performs an exit action until the vehicle has no action request, and within a preset third time threshold, the vehicle speed is kept at 0, the vehicle gear is kept at the parking gear, and the electronic hand brake is kept in the pulled-up state. The state determination module determines that the state machine signal is a successful exit, and the state monitoring module acquires the vehicle state monitoring signal in real time.

[0054] Further, the state determination module is also used to determine that the state machine signal is an internal fault state, an external fault state or an exit failure state; wherein: if the state determination module determines that the state machine signal is an internal fault state, an external fault state or an exit failure state, the vehicle locking and power-off are executed by the power-off control module.

[0055] Further, if the state determination module determines that the state machine signal is an internal fault state, an external fault state or a failed departure state, the vehicle is locked and powered off by the power-off control module, including: when detecting that the vehicle system has internal hardware or software failure, the state determination module determines that the state machine signal is an internal fault state; when detecting that the associated system or the associated actuator has failure, the state determination module determines that the state machine signal is an external fault state; wherein: the associated system refers to the vehicle system related to the departure function; the associated actuator refers to the execution component related to the departure function; within a preset second time threshold, the vehicle performs the departure action and the vehicle has a continuous action request, the state determination module determines that the state machine signal is a failed departure state.

[0056] Further, the departure execution module is configured to power on the vehicle and perform a departure action in response to the key departure signal, and obtain a state machine signal, including: the departure execution module powers on the vehicle and obtains vehicle state data and external environment data in response to the key departure signal; if the vehicle state data and the external environment data both satisfy the departure condition, the departure execution module controls the vehicle to perform the departure action and obtains the state machine signal.

[0057] The above is the preferred embodiment of the present application. It should be noted that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which are also considered within the scope of protection of the present application.

Claims

1. A vehicle egress power down control method, comprising: The method comprises the following steps: In response to the key departure signal, the vehicle is powered on and a departure action is performed to obtain a state machine signal; If the state machine signal is determined to be a departure success, a vehicle state monitoring signal is obtained in real time; If the state machine signal is determined to be an internal fault state, an external fault state or a departure failure state, the vehicle is locked and powered off, including: when a fault is detected in the internal hardware or software of the vehicle system, the state machine signal is determined to be an internal fault state; when a fault is detected in the associated system or the associated actuator, the state machine signal is determined to be an external fault state; wherein: the associated system refers to a vehicle system related to the departure function; the associated actuator refers to an execution component related to the departure function; if the vehicle performs the departure action and the vehicle continuously has a motion request within a preset second time length threshold, the state machine signal is determined to be a departure failure state; If the vehicle state monitoring signal does not change within a preset first time length threshold, the vehicle is locked and powered off.

2. The vehicle departure power down control method of claim 1, wherein, If the state machine signal is determined to be a departure success, a vehicle state monitoring signal is obtained in real time, including: If the vehicle performs the departure action until the vehicle has no motion request, the vehicle speed is kept at 0, the vehicle gear is kept in the parking gear and the electronic hand brake is kept in the pulled-up state within a preset third time length threshold, the state machine signal is determined to be a departure success, and a vehicle state monitoring signal is obtained in real time.

3. The vehicle leaving control method according to any one of claims 1 to 2, characterized in that, In response to the key departure signal, the vehicle is powered on and a departure action is performed to obtain a state machine signal, including: In response to the key departure signal, the vehicle is powered on and vehicle state data and external environment data are obtained; If the vehicle state data and the external environment data both meet the departure conditions, the vehicle performs the departure action to obtain the state machine signal.

4. A vehicle egress power down control system, characterized by, It comprises: A departure execution module for powering on the vehicle and performing a departure action in response to a key departure signal to obtain a state machine signal; A state determination module for determining the state of the state machine signal; The state determination module is also used to determine that the state machine signal is an internal fault state, an external fault state or a departure failure state; wherein: if the state determination module determines that the state machine signal is an internal fault state, an external fault state or a departure failure state, a power-off control module is used to lock and power off the vehicle, including: when a fault is detected in the internal hardware or software of the vehicle system, the state determination module determines that the state machine signal is an internal fault state; when a fault is detected in the associated system or the associated actuator, the state determination module determines that the state machine signal is an external fault state; wherein: the associated system refers to a vehicle system related to the departure function; the associated actuator refers to an execution component related to the departure function; if the vehicle performs the departure action and the vehicle continuously has a motion request within a preset second time length threshold, the state determination module determines that the state machine signal is a departure failure state; A state monitoring module for obtaining a vehicle state monitoring signal in real time; A power-off control module for locking and powering off the vehicle. When the state determination module determines that the state machine signal is a successful delivery, the state monitoring module acquires a vehicle state monitoring signal in real time; If the vehicle state monitoring signal does not change within a preset first time threshold, the power-off control module executes vehicle locking and power-off.

5. The vehicle egress power down control system of claim 4, wherein, When the state determination module determines that the state machine signal is a successful delivery, the state monitoring module acquires a vehicle state monitoring signal in real time, including: Within a preset second time threshold, the vehicle executes a delivery action until the vehicle has no action request, within a preset third time threshold, the vehicle speed is kept at 0, the vehicle gear is kept at the parking gear, and the electronic hand brake is kept in the pulled-up state, then the state determination module determines that the state machine signal is a successful delivery, and the state monitoring module acquires a vehicle state monitoring signal in real time.

6. The vehicle egress power down control system of any one of claims 4-5, wherein, The delivery execution module is configured to, in response to a key delivery signal, power on the vehicle and execute a delivery action, and acquire a state machine signal, including: The delivery execution module powers on the vehicle in response to the key delivery signal and acquires vehicle state data and external environment data; If the vehicle state data and the external environment data both meet the delivery conditions, the delivery execution module controls the vehicle to execute the delivery action and acquires the state machine signal.

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