CN111169471B - Integrated vehicle safety controller, safety control system, method and vehicle - Google Patents
Integrated vehicle safety controller, safety control system, method and vehicle Download PDFInfo
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- CN111169471B CN111169471B CN201811341048.3A CN201811341048A CN111169471B CN 111169471 B CN111169471 B CN 111169471B CN 201811341048 A CN201811341048 A CN 201811341048A CN 111169471 B CN111169471 B CN 111169471B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/08—Active safety systems predicting or avoiding probable or impending collision or attempting to minimise its consequences
- B60W30/09—Taking automatic action to avoid collision, e.g. braking and steering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/08—Active safety systems predicting or avoiding probable or impending collision or attempting to minimise its consequences
- B60W30/095—Predicting travel path or likelihood of collision
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R2021/01013—Means for detecting collision, impending collision or roll-over
Abstract
The invention discloses an integrated vehicle safety controller, a safety control system and a method. Wherein the safety controller comprises: the system comprises a redundancy control circuit, a passive safety function operation processing unit and an active safety function operation processing unit, wherein the passive safety function operation processing unit is used for carrying out redundancy control on the active safety key function through the redundancy control circuit when the active safety key function is monitored to be abnormal; and the active safety function operation processing unit is used for carrying out redundancy control on the passive safety key function through the redundancy control circuit when the passive safety key function is monitored to be abnormal. According to the embodiment of the invention, the passive safety function operation processing unit and the active safety function operation processing unit are integrated, so that a large amount of controller packaging cost, controller installation cost and wiring harness arrangement cost are saved, and the arrangement space of the whole vehicle is saved.
Description
Technical Field
The invention relates to the field of vehicle safety control, in particular to an integrated vehicle safety controller, a safety control system, a control method and a vehicle.
Background
The common automobile safe driving control system in the prior art mainly comprises: the system comprises a safe driving controller, an instrument panel unit, an automatic transmission control unit, an air bag safety unit, an engine unit, an anti-lock brake unit, a vehicle body control unit, an electronic accelerator pedal and a double-flashing-lamp relay; the safety belt buckle is structurally characterized by further comprising a safety belt buckle seat, a passenger seat pressure sensor and a Hall sensor for detecting the opening degree of a car window; the safety belt buckle seat, the front passenger seat pressure sensor and the Hall sensor are electrically connected with the safety driving controller through signals. The method for carrying out safety control through the safe driving control system mainly comprises the following steps: when the driver and the passenger are judged not to fasten the safety belt by collecting the electric signal of the safety belt buckle seat, the safe driving controller adopts time-sharing speed to carry out corresponding safe control, and the highest speed per hour is controlled not to exceed a certain value, such as 40 KM/h.
But the problems that exist at present are: although the safe driving control system can realize the active safety and passive safety unified cooperative control of the whole vehicle, the safe driving control system is additionally provided with a function interaction control unit among the control units on the basis of the existing control units of the vehicle, so that the packaging cost, the installation cost and the wiring harness arrangement cost of a large number of controllers are increased, and the arrangement space of the whole vehicle is also increased.
Disclosure of Invention
The object of the present invention is to solve at least to some extent one of the above mentioned technical problems.
To this end, a first object of the present invention is to propose an integrated vehicle safety controller. According to the embodiment of the invention, the passive safety function operation processing unit and the active safety function operation processing unit are integrated, so that a large amount of controller packaging cost, controller installation cost and wiring harness arrangement cost are saved, and the arrangement space of the whole vehicle is saved.
A second object of the present invention is to provide an integrated vehicle safety control system.
A third object of the present invention is to provide a safety control method.
A fourth object of the invention is to propose a vehicle.
In order to achieve the above object, an integrated vehicle safety controller according to an embodiment of a first aspect of the present invention includes: a redundancy control circuit, a passive safety function arithmetic processing unit and an active safety function arithmetic processing unit, wherein,
the redundancy control circuit is used for connecting the passive safety function operation processing unit with a driving circuit of an active safety key function of the vehicle and connecting the active safety function operation processing unit with the driving circuit of the passive safety key function of the vehicle;
the passive safety function operation processing unit is used for monitoring the whole functions of the controller, starting the redundancy function of the passive safety function operation processing unit when the active safety key function is monitored to be abnormal, and performing redundancy control on the active safety key function through the redundancy control circuit;
the active safety function operation processing unit is used for monitoring the whole functions of the controller, starting the redundancy function of the active safety function operation processing unit when the passive safety key function is monitored to be abnormal, and performing redundancy control on the passive safety key function through the redundancy control circuit.
In order to achieve the above object, an integrated vehicle safety control system according to an embodiment of a second aspect of the present invention includes: an integrated vehicle safety controller according to an embodiment of the first aspect of the invention; collision sensors respectively connected to the passive safety function arithmetic processing unit and the active safety function arithmetic processing unit, for detecting deceleration and a collision signal of the vehicle; a critical passive safety device connected to the redundant control circuit for providing a passive safety critical function; a critical active safety device connected to the redundant control circuit for providing an active safety critical function; a power distribution and safety device connected to the vehicle safety controller for providing power supply and over-current protection to the vehicle safety controller.
In order to achieve the above object, an embodiment of a third aspect of the present invention provides a method for performing safety control using an integrated vehicle safety controller according to an embodiment of the first aspect of the present invention, including: the passive safety function operation processing unit is used for carrying out function monitoring on the active safety function operation processing unit; the active safety function operation processing unit is used for carrying out function monitoring on the passive safety function operation processing unit; when the passive safety function operation processing unit monitors that the active safety key function is abnormal, the passive safety function operation processing unit starts the redundancy function of the passive safety function operation processing unit, and performs redundancy control on the active safety key function through the redundancy control circuit; when the active safety function operation processing unit monitors that the passive safety key function is abnormal, the active safety function operation processing unit starts the redundancy function of the active safety function operation processing unit, and performs redundancy control on the passive safety key function through the redundancy control circuit.
In order to achieve the above object, a vehicle according to a fourth aspect of the present invention includes: the integrated vehicle safety control system of the embodiment of the second aspect of the invention.
According to the integrated vehicle safety controller, the safety control system and method and the vehicle provided by the embodiment of the invention, the passive safety function operation processing unit is connected with the driving circuit of the active safety key function of the vehicle through the redundancy control circuit, and the active safety function operation processing unit is connected with the driving circuit of the passive safety key function, so that when the passive safety function operation processing unit monitors that the active safety key function is abnormal, the redundancy function of the passive safety function operation processing unit can be started, and the redundancy control circuit is used for performing redundancy control on the active safety key function; or when the active safety function operation processing unit monitors that the passive safety key function is abnormal, starting the redundancy function of the active safety function operation processing unit, and performing redundancy control on the passive safety key function through the redundancy control circuit. Therefore, the passive safety function operation processing unit and the active safety function operation processing unit are used for monitoring the functions of the other side, when the functions of the other side are monitored to be abnormal, the redundancy function of the other side is started, and the active safety key function and the passive safety key function are subjected to redundancy control through the redundancy control circuit, so that even if one safety function operation processing unit is abnormal in function, the other safety function operation processing unit can be used for realizing the control of the key function through the redundancy control circuit, and the driving safety of the vehicle is ensured. In addition, the passive safety function operation processing unit and the active safety function operation processing unit are integrated, and compared with the traditional controller, the passive safety function operation processing unit and the active safety function operation processing unit are simply stacked, so that a large amount of controller packaging cost, controller installation cost and wiring harness arrangement cost are saved, and the arrangement space of the whole vehicle is saved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of an integrated vehicle safety controller according to one embodiment of the present invention;
FIG. 2 is a schematic diagram of an integrated vehicle safety controller according to another embodiment of the present invention;
FIG. 3 is a schematic diagram of an integrated vehicle safety control system according to one embodiment of the present invention;
FIG. 4 is a flow diagram of a safety control method according to one embodiment of the invention;
fig. 5 is a schematic structural diagram of a vehicle according to an embodiment of the invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. 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.
An integrated vehicle safety controller, a safety control system, a safety control method, and a vehicle of the embodiments of the invention are described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of an integrated vehicle safety controller according to an embodiment of the present invention.
As shown in fig. 1, the integrated vehicle safety controller 100 may include: a redundancy control circuit 110, a passive safety function arithmetic processing unit 120, and an active safety function arithmetic processing unit 130.
The redundancy control circuit 110 may be configured to connect the passive safety function arithmetic processing unit 120 to the driving circuits of the active safety-critical function and the passive safety-critical function of the vehicle, respectively, and connect the active safety function arithmetic processing unit 130 to the driving circuits of the active safety-critical function and the passive safety-critical function, respectively.
It should be noted that, in order to facilitate functional design and policy making, the embodiment of the present invention proposes the concept of a critical security function and a non-critical security function for all security functions. Wherein, the key safety function refers to the necessary protection function related to the regulation requirement or the safety problem directly threatening the life of passengers; non-critical safety functions are then other functions in the vehicle than the critical safety functions. Since the safety functions of the vehicle can be divided into an active safety function and a passive safety function, the embodiment of the present invention can divide the safety function categories of the vehicle into: passive safety critical function, passive safety non-critical function, active safety critical function, and active safety non-critical function. For example, as shown in table 1 below, is a typical security function classification. As one example, the active safety critical function may include, but is not limited to, a park function, or the like; the passive safety critical functions may include, but are not limited to: an airbag function, a seat belt locking function, and the like; the active safety non-critical functions may include a driving assistance function, a lane keeping function, a keyless entry function, and the like; passive safety non-critical functions may include pedestrian protection, head and neck protection, and inflatable curtains, among others.
TABLE 1 Security function Classification scheme
In the embodiment of the present invention, the driving circuits of the active safety-critical function and the passive safety-critical function can be connected to the passive safety-functional arithmetic processing unit 120 or the active safety-functional arithmetic processing unit 130 through the redundancy control circuit 110, so as to implement a redundancy circuit.
The passive safety function arithmetic processing unit 120 may be configured to monitor the overall function of the controller 100, and when it is monitored that the active safety key function is abnormal, start the redundancy function of the passive safety function arithmetic processing unit 120, and perform redundancy control on the active safety key function through the redundancy control circuit 110.
It CAN be understood that the passive safety function arithmetic processing unit 120 and the active safety function arithmetic processing unit 130 CAN perform function detection on themselves, that is, the passive safety function arithmetic processing unit 120 CAN perform function detection on the passive safety function of itself, and the active safety function arithmetic processing unit 130 CAN perform function detection on the active safety function of itself, so that the passive safety function arithmetic processing unit 120 CAN monitor the whole function of the controller 100 through bus communication, and when the active safety function arithmetic processing unit 130 performs function detection on the active safety function of itself, a signal CAN be sent to the CAN bus of the vehicle when detecting that an abnormality occurs, so that the passive safety function arithmetic processing unit 120 CAN read the signal from the CAN bus to monitor that the active safety key function is abnormal, and at this time, the redundant function of the passive safety function arithmetic processing unit 120 CAN be started, and shields the control function of the active safety function arithmetic processing unit 130, for example, shields the active safety critical function of the active safety function arithmetic processing unit 130 to prevent control abnormality, and performs redundancy control on the active safety critical function and the passive safety critical function through the redundancy control circuit 110.
The active safety function arithmetic processing unit 130 may be configured to monitor the overall function of the controller 100, and when it is monitored that the passive safety key function is abnormal, start the redundancy function of the active safety function arithmetic processing unit 130, and perform redundancy control on the passive safety key function through the redundancy control circuit 110.
Alternatively, when the passive safety function arithmetic processing unit 120 detects the passive safety function of itself, it may send a signal to the CAN bus of the vehicle when detecting the occurrence of an abnormality, so that the active safety function arithmetic processing unit 130 reads the signal from the CAN bus to detect the occurrence of an abnormality of the passive safety critical function. At this time, the redundancy function of the active safety function arithmetic processing unit 130 may be enabled, and the active safety critical function and the passive safety critical function may be redundantly controlled by the redundancy control circuit 110, and it can be understood that the driving function of the passive safety function arithmetic processing unit 120 is not masked at this time.
In order to enable communication between the passive safety function arithmetic processing unit 120 and the active safety function arithmetic processing unit 130, optionally, in an embodiment of the present invention, as shown in fig. 1, the vehicle safety controller 100 may further include: a passive security function communication module 140 and an active security function communication module 150. The passive safety function communication module 140 is configured to establish a communication connection between the passive safety function operation processing unit 120 and the vehicle CAN bus 1; the active safety function communication module 150 is configured to establish a communication connection between the active safety function arithmetic processing unit 130 and the vehicle CAN bus 1. That is, the passive safety function arithmetic processing unit 120 and the active safety function arithmetic processing unit 130 may communicate with the vehicle CAN bus through respective communication modules, thereby implementing communication between the passive safety function arithmetic processing unit 120 and the active safety function arithmetic processing unit 130.
In the embodiment of the present invention, the passive safety function arithmetic processing unit 120 is further configured to collect the driving safety signal from the CAN bus 1 through the passive safety function communication module 140. The active safety function arithmetic processing unit 130 is also configured to collect a driving safety signal from the CAN bus 1 through the active safety function communication module 150. That is, the passive safety function arithmetic processing unit 120 communicates with the CAN bus through the passive safety function communication module 140, so that the passive safety function arithmetic processing unit 120 CAN perform signal acquisition, command transmission, and the like related to the passive safety function from the CAN bus 1 through the passive safety function communication module 140. The active safety function arithmetic processing unit 130 may also perform signal acquisition and transmission instructions related to the active safety function from the CAN bus 1 through the active safety function communication module 150.
In order to ensure the driving safety of the vehicle, in the embodiment of the present invention, the passive safety function arithmetic processing unit 120 is further configured to control all the passive safety devices of the vehicle to perform respective passive safety function operations when the collision signal is collected from the CAN bus 1. Optionally, when the collision sensor on the vehicle outputs a collision signal to the CAN bus, the passive safety function arithmetic processing unit 120 may collect the collision signal from the CAN bus, which indicates that the function of the passive safety function arithmetic processing unit 120 is in a normal state, and at this time, may control all the passive safety devices of the vehicle to perform their respective passive safety function operations. Wherein, all passive safety devices can include: critical passive safety devices and non-critical passive safety devices. As one example, the critical passive safety devices include an airbag device and a belt locking mechanism; non-critical passive safety devices may include: pedestrian protection device, neck protection device and gas curtain device etc..
That is, when the passive safety function arithmetic processing unit 120 acquires the collision signal from the CAN bus, at this time, regardless of whether the active safety function arithmetic processing unit 130 has a functional abnormality or has not a functional abnormality, all the passive safety devices of the vehicle are controlled to perform respective passive safety function operations by the passive safety function arithmetic processing unit 120.
In order to ensure the driving safety of the vehicle, in the embodiment of the present invention, the active safety function arithmetic processing unit 130 is further configured to control the devices corresponding to the passive safety key function to execute respective functional operations when it is monitored that the passive safety key function is abnormal and a collision signal is collected from the CAN bus 1. That is, when it is monitored that the passive safety-critical function is abnormal and the active safety-functional arithmetic processing unit 130 acquires a collision signal from the CAN bus 1, the active safety-functional arithmetic processing unit 130 may control the device corresponding to the passive safety-critical function to perform its own functional operation. As an example, the device corresponding to the passive safety key function may include an airbag device and a seat belt locking mechanism, that is, when it is detected that the passive safety key function is abnormal and the active safety function processing unit 130 collects a collision signal from the CAN bus 1, the active safety function processing unit 130 may control the airbag device to open the airbag and control the seat belt locking mechanism to perform a locking operation on the seat belt, so as to ensure the safety of a person in the vehicle.
In order to improve the reliability of the integrated controller, optionally, in an embodiment of the present invention, as shown in fig. 2, the vehicle safety controller 100 may further include: a body inertia measurement unit 160 and a low frequency receiving antenna 170. The vehicle body inertia measurement unit 160 is connected to the passive safety function arithmetic processing unit 120 and the active safety function arithmetic processing unit 130, respectively, and the vehicle body inertia measurement unit 160 is configured to detect a vehicle body motion state of the vehicle during a driving process. The low frequency receiving antenna 170 is connected to the active safety function arithmetic processing unit 130, and the low frequency receiving antenna 170 may be used to receive signals sent by the vehicle key controller and the tire pressure sensor.
That is to say, the vehicle body inertia measurement unit 160, the low-frequency receiving antenna 170, the passive safety function operation processing unit 120 and the active safety function operation processing unit 130 can be integrally designed into a whole, and can be installed in the center of mass of the whole vehicle, so that the measurement and installation position requirements of the vehicle body inertia measurement unit and the key signal detection requirements of the low-frequency receiving antenna are met, and meanwhile, the reliability of the integrated controller is improved by utilizing the characteristic that the center of mass position is not easily influenced by factors such as vibration and collision. In addition, the vehicle body inertia measuring unit, the low-frequency receiving antenna, the passive safety function operation processing unit and the active safety function operation processing unit are integrated, and compared with a traditional controller, the vehicle body inertia measuring unit is simple to stack, and a large amount of cost is saved.
It should be noted that, in an embodiment of the present invention, the vehicle safety controller may implement independent control and safety redundancy of active and passive two-part functions through a multi-core safety architecture. The design can further simplify peripheral circuits inside the safety controller and reduce development cost. In other words, the vehicle safety controller realizes independent control and safety redundancy of active and passive functions through one processing unit with multiple cores.
According to the integrated vehicle safety controller provided by the embodiment of the invention, the passive safety function operation processing unit is connected with the driving circuit of the active safety key function of the vehicle through the redundancy control circuit, and the active safety function operation processing unit is connected with the driving circuit of the passive safety key function, so that when the passive safety function operation processing unit monitors that the active safety key function is abnormal, the redundancy function of the passive safety function operation processing unit can be started, and the redundancy control circuit is used for performing redundancy control on the active safety key function; or when the active safety function operation processing unit monitors that the passive safety key function is abnormal, starting the redundancy function of the active safety function operation processing unit, and performing redundancy control on the passive safety key function through the redundancy control circuit. Therefore, the passive safety function operation processing unit and the active safety function operation processing unit are used for monitoring the functions of the other side, when the functions of the other side are monitored to be abnormal, the redundancy function of the other side is started, and the active safety key function and the passive safety key function are subjected to redundancy control through the redundancy control circuit, so that even if one safety function operation processing unit is abnormal in function, the other safety function operation processing unit can be used for realizing the control of the key function through the redundancy control circuit, and the driving safety of the vehicle is ensured. In addition, the passive safety function operation processing unit and the active safety function operation processing unit are integrated, and compared with the traditional controller, the passive safety function operation processing unit and the active safety function operation processing unit are simply stacked, so that a large amount of controller packaging cost, controller installation cost and wiring harness arrangement cost are saved, and the arrangement space of the whole vehicle is saved.
The invention also provides an integrated vehicle safety control system.
Fig. 3 is a schematic structural diagram of an integrated vehicle safety control system according to an embodiment of the present invention. As shown in fig. 3, the integrated vehicle safety control system may include: vehicle safety controller 100, collision sensor 200, critical passive safety devices 300, critical active safety devices 400, power distribution and safety devices 500.
For functional description of the vehicle safety controller 100, reference may be made to the functional description of the integrated vehicle safety controller described in any of the above embodiments, and details are not repeated herein.
The collision sensor 200 is connected to the passive safety function arithmetic processing unit 120 and the active safety function arithmetic processing unit 130, respectively, and the collision sensor 200 can be used to detect deceleration and a collision signal of the vehicle. That is, the collision sensor 200 may detect deceleration of the vehicle and a collision signal, and upon detecting the collision signal, may transmit the collision signal to a CAN bus of the vehicle, so that the passive safety function arithmetic processing unit and the active safety function arithmetic processing unit in the vehicle safety controller 100 may collect the collision signal from the CAN bus.
The critical passive safety device 300 is connected to the redundant control circuit 110, and the critical passive safety device 300 may be used to provide a passive safety critical function. As one example, the critical passive safety device 300 may include an airbag device and a belt locking mechanism, and the passive safety critical functions may include an airbag function and a belt locking function.
The critical active safety device 400 is coupled to the redundant control circuit 110, and the critical active safety device 400 may be used to provide active safety critical functions. As one example, the critical active safety device 400 may include a park mechanism that may provide a park function.
The power distribution and safety device 500 is connected to the vehicle safety controller 100, and the power distribution and safety device 500 may be used to provide power supply and overcurrent protection to the vehicle safety controller 100.
In order to secure driving safety of the vehicle, the integrated vehicle safety control system may further include: non-critical passive safety devices and non-critical active safety devices. For example, non-critical passive safety devices may include pedestrian protection devices, head and neck protection devices. Non-critical active safety devices may include door locks, driving assistance systems, and lane keeping systems.
Among them, the pedestrian protection apparatus can mitigate damage to a pedestrian when a vehicle collides with the pedestrian, such as actively bouncing up the front hatch. The driving circuit is controlled according to the instruction sent by the passive safety function operation processing unit.
The head and neck protection device can protect the head and neck of a driver from being damaged by relative movement caused by impact when a vehicle is seriously collided by rear-end collision. The driving circuit is controlled according to the instruction sent by the passive safety function operation processing unit.
The door lock can be responsible for the locking of door, the function of unblanking. The driving circuit is controlled according to the instruction sent by the active safety function operation processing unit.
The driving auxiliary system can monitor the conditions of surrounding vehicles, road surface marks, visual field blind areas and the like in the driving process of the vehicles through a radar or a camera, and reminds a driver through alarming when possible danger is detected. The driving circuit is controlled according to the instruction sent by the active safety function operation processing unit.
The lane keeping system can monitor the lane occupation condition of the vehicle in the driving process through the radar or the camera, and if the vehicle does not detect the lane changing and steering request of a driver, the driving direction of the vehicle is actively corrected through the power steering device or the braking device, so that the danger of lane departure caused by the fatigue of the driver or other reasons is prevented. The driving circuit is controlled according to the instruction sent by the active safety function operation processing unit.
According to the vehicle safety control system provided by the embodiment of the invention, the passive safety function operation processing unit and the active safety function operation processing unit are used for monitoring the functions of the opposite side, the redundancy function of the passive safety function operation processing unit is started when the function of the opposite side is monitored to be abnormal, and the redundancy control circuit is used for performing redundancy control on the active safety key function and the passive safety key function, so that even if a certain safety function operation processing unit is abnormal in function, the other safety function operation processing unit can be used for realizing the control on the key functions by using the redundancy control circuit, and the driving safety of the vehicle is ensured. In addition, the passive safety function operation processing unit and the active safety function operation processing unit are integrated, and compared with the traditional controller, the passive safety function operation processing unit and the active safety function operation processing unit are simply stacked, so that a large amount of controller packaging cost, controller installation cost and wiring harness arrangement cost are saved, and the arrangement space of the whole vehicle is saved.
The invention also provides a safety control method.
Fig. 4 is a flowchart of a safety control method according to an embodiment of the present invention. The safety control method according to the embodiment of the present invention is a method for performing safety control by using the vehicle safety controller according to any one of the above-described embodiments of the present invention. As shown in fig. 4, the safety control method may include:
and S410, the passive safety function operation processing unit performs function monitoring on the active safety function operation processing unit.
Optionally, after the vehicle safety controller is powered on, the passive safety function operation processing unit in the vehicle safety controller may perform function monitoring on the active safety function operation processing unit to monitor whether the active safety function operation processing unit is in a functional abnormality.
And S420, the active safety function operation processing unit performs function monitoring on the passive safety function operation processing unit.
Optionally, after the vehicle safety controller is powered on, the active safety function operation processing unit may perform function monitoring on the passive safety function operation processing unit to monitor whether the passive safety function operation processing unit has a function abnormality.
That is, after the vehicle safety controller is powered on, the passive safety function arithmetic processing unit and the active safety function arithmetic processing unit may perform function monitoring on the other side to monitor whether the other side has a function abnormality.
And S430, when the passive safety function operation processing unit monitors that the active safety key function is abnormal, the passive safety function operation processing unit starts the redundancy function of the passive safety function operation processing unit, and performs redundancy control on the active safety key function through the redundancy control circuit.
That is to say, when the passive safety function arithmetic processing unit and the active safety function arithmetic processing unit perform function monitoring on the other side, if the passive safety function arithmetic processing unit monitors that the active safety key function of the active safety function arithmetic processing unit is abnormal, the passive safety function arithmetic processing unit can start the redundancy function of the passive safety function arithmetic processing unit at this time and shield the control function of the active safety function arithmetic processing unit, for example, the active safety key function of the active safety function arithmetic processing unit is shielded to prevent control abnormality, and the active safety key function and the passive safety key function are redundantly controlled by the redundancy control circuit.
And S440, when the active safety function operation processing unit monitors that the passive safety key function is abnormal, the active safety function operation processing unit starts the redundancy function of the active safety function operation processing unit, and performs redundancy control on the passive safety key function through the redundancy control circuit.
That is, when the passive safety function arithmetic processing unit and the active safety function arithmetic processing unit perform function monitoring on the other side, if the active safety function arithmetic processing unit monitors that the passive safety key function of the passive safety function arithmetic processing unit is abnormal, the active safety function arithmetic processing unit can start the redundancy function of the active safety function arithmetic processing unit at the moment, and perform redundancy control on the active safety key function and the passive safety key function through the redundancy control circuit. It is understood that the driving function of the passive safety function arithmetic processing unit is not masked at this time.
In order to ensure the driving safety of the vehicle, in one embodiment of the invention, when the passive safety function arithmetic processing unit collects the collision signal from the CAN bus, the passive safety function arithmetic processing unit controls all passive safety devices of the vehicle to execute respective passive safety function operations. When the passive safety function operation processing unit acquires the collision signal from the CAN bus, no matter whether the active safety function operation processing unit has abnormal function or not, all the passive safety devices of the vehicle are controlled to execute respective passive safety function operation through the passive safety function operation processing unit.
In order to ensure the driving safety of the vehicle, in the embodiment of the invention, when the active safety function operation processing unit monitors that the passive safety key function is abnormal and acquires a collision signal from the CAN bus, the active safety function operation processing unit controls the device corresponding to the passive safety key function to execute respective function operation. That is, when it is monitored that the passive safety key function is abnormal and the active safety function processing unit acquires a collision signal from the CAN bus 1, the active safety function processing unit may control the device corresponding to the passive safety key function to perform respective function operation. As an example, the device corresponding to the passive safety key function may include an airbag device and a seat belt locking mechanism, that is, when it is detected that the passive safety key function is abnormal and the active safety function processing unit acquires a collision signal from the CAN bus 1, the active safety function processing unit may control the airbag device to open the airbag and control the seat belt locking mechanism to lock the seat belt, so as to ensure the safety of the person in the vehicle.
According to the safety control method provided by the embodiment of the invention, the passive safety function operation processing unit and the active safety function operation processing unit are used for monitoring the functions of the opposite side, the redundancy function of the passive safety function operation processing unit is started when the function of the opposite side is monitored to be abnormal, and the redundancy control circuit is used for performing redundancy control on the active safety key function and the passive safety key function, so that even if a certain safety function operation processing unit is abnormal in function, the other safety function operation processing unit can be used for realizing the control on the key functions by using the redundancy control circuit, and the driving safety of a vehicle is ensured. In addition, the passive safety function operation processing unit and the active safety function operation processing unit are integrated, and compared with the traditional controller, the passive safety function operation processing unit and the active safety function operation processing unit are simply stacked, so that a large amount of controller packaging cost, controller installation cost and wiring harness arrangement cost are saved, and the arrangement space of the whole vehicle is saved.
In order to realize the embodiment, the invention further provides a vehicle.
Fig. 5 is a schematic structural diagram of a vehicle according to an embodiment of the invention. As shown in fig. 5, the vehicle 50 includes an integrated vehicle safety control system according to any one of the above embodiments of the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (11)
1. An integrated vehicle safety controller, comprising: a redundancy control circuit, a passive safety function arithmetic processing unit and an active safety function arithmetic processing unit, wherein,
the redundancy control circuit is used for connecting the passive safety function operation processing unit with a driving circuit of an active safety key function of the vehicle and connecting the active safety function operation processing unit with the driving circuit of the passive safety key function of the vehicle;
the passive safety function operation processing unit is used for monitoring the whole functions of the controller, starting the redundancy function of the passive safety function operation processing unit when the active safety key function is monitored to be abnormal, and performing redundancy control on the active safety key function through the redundancy control circuit;
the active safety function operation processing unit is used for monitoring the whole functions of the controller, starting the redundancy function of the active safety function operation processing unit when the passive safety key function is monitored to be abnormal, and performing redundancy control on the passive safety key function through the redundancy control circuit.
2. The integrated vehicle safety controller of claim 1, wherein the passive safety function arithmetic processing unit is further configured to mask the control function of the active safety function arithmetic processing unit when the redundant function of the passive safety function arithmetic processing unit is enabled.
3. The integrated vehicle safety controller of claim 1, further comprising:
the passive safety function communication module is used for establishing communication connection between the passive safety function operation processing unit and a vehicle CAN bus;
the active safety function communication module is used for establishing communication connection between the active safety function operation processing unit and the vehicle CAN bus;
the passive safety function operation processing unit is also used for acquiring driving safety signals from the CAN bus through the passive safety function communication module;
and the active safety function operation processing unit is also used for acquiring driving safety signals from the CAN bus through the active safety function communication module.
4. The integrated vehicle safety controller of claim 3,
the passive safety function operation processing unit is also used for controlling all passive safety devices of the vehicle to execute respective passive safety function operation when a collision signal is acquired from the CAN bus;
and the active safety function operation processing unit is also used for controlling devices corresponding to the passive safety key function to execute respective function operation when monitoring that the passive safety key function is abnormal and acquiring a collision signal from the CAN bus.
5. The integrated vehicle safety controller of claim 1, further comprising: a vehicle body inertia measuring unit and a low-frequency receiving antenna, wherein,
the vehicle body inertia measurement unit is respectively connected with the passive safety function operation processing unit and the active safety function operation processing unit and is used for detecting the vehicle body motion state of the vehicle in the driving process;
the low-frequency receiving antenna is connected with the active safety function operation processing unit and used for receiving signals sent by the vehicle key controller and the tire pressure sensor.
6. The integrated vehicle safety controller according to any one of claims 1 to 5, wherein the active safety critical function comprises: a parking function; the passive safety critical functions include: an airbag function and a seat belt locking function.
7. An integrated vehicle safety control system, comprising:
an integrated vehicle safety controller as claimed in any one of claims 1 to 6;
collision sensors respectively connected to the passive safety function arithmetic processing unit and the active safety function arithmetic processing unit, for detecting deceleration and a collision signal of the vehicle;
a critical passive safety device connected to the redundant control circuit for providing a passive safety critical function;
a critical active safety device connected to the redundant control circuit for providing an active safety critical function;
a power distribution and safety device connected to the vehicle safety controller for providing power supply and over-current protection to the vehicle safety controller.
8. The integrated vehicle safety control system of claim 7, wherein the critical passive safety devices comprise: an airbag device and a seat belt locking mechanism; the critical active safety device comprises: a parking mechanism.
9. A method of safety control using the integrated vehicle safety controller of any one of claims 1 to 6, comprising:
the passive safety function operation processing unit is used for carrying out function monitoring on the active safety function operation processing unit;
the active safety function operation processing unit is used for carrying out function monitoring on the passive safety function operation processing unit;
when the passive safety function operation processing unit monitors that the active safety key function is abnormal, the passive safety function operation processing unit starts the redundancy function of the passive safety function operation processing unit, and performs redundancy control on the active safety key function through the redundancy control circuit;
when the active safety function operation processing unit monitors that the passive safety key function is abnormal, the active safety function operation processing unit starts the redundancy function of the active safety function operation processing unit, and performs redundancy control on the passive safety key function through the redundancy control circuit.
10. The method of claim 9, further comprising:
when the passive safety function operation processing unit acquires a collision signal from a CAN bus, the passive safety function operation processing unit controls all passive safety devices of the vehicle to execute respective passive safety function operation;
and when the active safety function operation processing unit monitors that the passive safety key function is abnormal and acquires a collision signal from the CAN bus, the active safety function operation processing unit controls the device corresponding to the passive safety key function to execute respective function operation.
11. A vehicle, characterized by comprising: an integrated vehicle safety control system as claimed in claim 7 or 8.
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