CN108227576A - The suspend mode control system and method for a kind of vehicle control device - Google Patents
The suspend mode control system and method for a kind of vehicle control device Download PDFInfo
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- CN108227576A CN108227576A CN201711456271.8A CN201711456271A CN108227576A CN 108227576 A CN108227576 A CN 108227576A CN 201711456271 A CN201711456271 A CN 201711456271A CN 108227576 A CN108227576 A CN 108227576A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
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Abstract
The present invention discloses the suspend mode control system and method for a kind of vehicle control device, the suspend mode control system of vehicle control device, including power interface, MCU, operational module, wake source and SBC；SBC includes external wake source input module and Voltage stabilizing module, external wake source input module connection wake source, the input terminal connection power interface of Voltage stabilizing module, the output terminal connection MCU of Voltage stabilizing module；Wake source is also connected with MCU.The present invention, since SBC is integrated with voltage-stablizer and external wake source input module, enormously simplifies circuit design, reduces cost by introducing SBC in suspend mode control system；Also, using the arousal function of the external wake source input module on SBC, in system suspend mode, close the power supply of all modules in addition to SBC, the partial function of SBC is only remained, greatly reduces the quiescent dissipation of system, while does not influence the response time of system external portion signal again.
Description
Technical field
The present invention relates to vehicle control device technical field, the suspend mode more specifically to a kind of vehicle control device controls
System and method.
Background technology
In recent years, the automation of automobile and intelligence degree are higher and higher, therefore the controller on automobile is also more and more.
For the response speed for improving the controller on automobile and after automobile flameout, remain to user instruction or vehicle condition into
Row judges and response, their power supply are directly connected to on-vehicle battery.After automobile flameout, these controllers can enter suspend mode
State to reduce its power consumption, but still can consume the electric energy of on-vehicle battery, prolonged to consume since amount controller is numerous
It can lead to battery power shortage, being unable to normal ignition so as to cause automobile starts.
In order to enable usage time of the on-vehicle battery after automobile flameout car locking is long as possible, then each controller must be limited
Quiescent current, that is, reduce quiescent dissipation.Specifically, for the Electronic control of arrangements for automotive doors, controller after suspend mode,
The wake source monitored is needed to have button, vehicle door status and the CAN bus of close door.Arrangements for automotive doors specifically includes automobile engine
Bonnet, side door, sliding door and trunk door etc..Whether vehicle door status, that is, car door is by Manual push-pull.
For existing door control system, these wake sources mainly pass through MCU (Microprogrammed
Control Unit, micro-control unit) it monitors, and MCU and CAN (Controller Area Network, controller local
Net) bus transceiver needs independent power supply chip to power again, as shown in Figure 1.
Using the above scheme in suspend mode at least MCU, CAN transceiver and power supply chip in power consumption.Control entire in this way
The quiescent current of device processed will be larger, so as to meet the requirements.
Invention content
In view of this, the present invention proposes a kind of the suspend mode control system and method for vehicle control device, reduction vehicle to be realized
The purpose of the quiescent dissipation of the controller of upper installation.
To achieve these goals, it is proposed that scheme it is as follows：
The suspend mode control system of a kind of vehicle control device, including power interface, MCU, operational module, wake source and SBC
(System Basis Chip, system base chip), SBC are collection automobile ECU (Electronic Control Unit, electronics
Control unit) needed for general-purpose system function in one component, including communication transceiver module, voltage regulator module, wake up it is defeated
Enter module, flash drive module and SPI interface (Serial Peripheral Interface, Serial Peripheral Interface (SPI)) etc.；
Vehicle power supply is sequentially connected the power interface, the SBC, the MCU, the operational module；
The SBC includes external wake source input module and Voltage stabilizing module, external wake source input module connection institute
State wake source, the input terminal of the Voltage stabilizing module connects the power interface, described in the output terminal connection of the Voltage stabilizing module
MCU；
The wake source is also connected with the MCU；
The MCU, for receiving the output signal of the wake source；
The MCU is additionally operable to when meeting suspend mode condition, and the closing operational module connected to it is opened outside described
Portion's wake source input module stops the SBC to its power supply and the SBC is controlled to enter suspend mode；
External wake source input module, for after the trigger signal for receiving the wake source, described in wake-up
SBC and the unlatching SBC power to the MCU.
Preferably, the SBC is further included：CAN transceiver；
The input terminal of the CAN transceiver connects the MCU, and the output terminal connection vehicle CAN of the CAN transceiver is total
Line；
The MCU is additionally operable to when meeting suspend mode condition, control the CAN transceiver enter can awakening mode, i.e.,
Standby patterns；
The CAN transceiver, for when the SBC is in suspend mode, if receiving CAN message, waking up institute
State SBC.
Preferably, the SBC, further includes：Flash drive module (HSD, the High Side being connect with the power interface
Drive)；
The SBC for the periodic wakeup after suspend mode is entered by MCU controls, is driven by the flash
Module is the wake source power supply for needing to power.
Preferably, the wake source for needing to power, specially：Hall sensor.
Preferably, the SBC, further includes：WatchDog Timer.
Preferably, the operational module, specifically includes：Driving power control module, motor drive module and motor；
The input terminal of the driving power control module connects the power interface, and output terminal connects the motor driving mould
Block, for switching on and off the input power of the motor drive module；
The control terminal of the driving power control module connects the MCU；
The control terminal of the motor drive module connects the MCU, for driving the work of the motor, to control car door
Opening and closing.
Preferably, the wake source, specially：Door contact interrupter.
A kind of dormancy control method of vehicle control device, applied to the suspend mode control system of above-mentioned vehicle control device, institute
The method of stating includes：
The MCU closes the operational module connected to it when judging to meet suspend mode condition, then sends wake-up and refers to
It enables, stop power supply instruction and dormancy instruction to the SBC；
After the SBC receives the wake-up instruction, external wake source input module is opened；
After the SBC receives the stopping power supply instruction, stop powering to the MCU；
After the SBC receives the dormancy instruction, into suspend mode；
External wake source input module wakes up the SBC after the trigger signal for receiving the wake source；
After the SBC enters normal mode of operation, power to the MCU；
The MCU after the power is turned on initializes the operational module.
Preferably, the system also includes the flash drive modules being connect with the power interface；
After the SBC receives the dormancy instruction, into after suspend mode step, further include：
The SBC periodic wakeups are that the wake source for needing to power is powered by the flash drive module.
Preferably, it after the completion of operational module initialization, further includes：
The MCU judges whether the signal of the wake source is effective, if in vain, it is determined that meet suspend mode condition.
Compared with prior art, technical scheme of the present invention has the following advantages：
The suspend mode control system and method for a kind of vehicle control device that above-mentioned technical proposal provides, the suspend mode of vehicle control device
Control system, including power interface, MCU, operational module, wake source and SBC；SBC is including external wake source input module and surely
Die block, external wake source input module connection wake source, Voltage stabilizing module input terminal connection power interface, Voltage stabilizing module it is defeated
Outlet connects MCU；Wake source is also connected with MCU.SBC is introduced in suspend mode control system, since SBC is integrated with voltage-stablizer and outer
Portion's wake source input module, therefore circuit design is enormously simplified, reduce cost；Also, utilize the external wake source on SBC
The external wake function of input module in system suspend mode, closes the power supply of all modules in addition to SBC, only remains SBC's
Partial function greatly reduces the quiescent dissipation of system, while does not influence the response time of system external portion signal again.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention, for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the structure diagram of existing door control system；
Fig. 2 is a kind of structure diagram of the suspend mode control system of vehicle control device provided in an embodiment of the present invention；
Fig. 3 is a kind of structure diagram of the suspend mode control system of Car's door controlling device provided in an embodiment of the present invention；
Fig. 4 is the structure diagram of the suspend mode control system of another Car's door controlling device provided in an embodiment of the present invention；
Fig. 5 is a kind of flow of the dormancy control method of vehicle control device provided in an embodiment of the present invention.
Specific embodiment
The present invention core concept be：By the power supply of all power consuming portions of unnecessary work in the dormant state in system
Cut-out, only retains the power supply of SBC, and all wake sources are connected on SBC, wakes up SBC by wake source first, then SBC is
MCU powers, then corresponding processing is made to wake-up signal by MCU.Therefore, for system in suspend mode, only SBC is with extremely low work(
Work consuming is made, and other modules are in closed state, so as to reduce the quiescent dissipation of system.
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
The present embodiment provides a kind of suspend mode control system of vehicle control device, referring to Fig. 2, including power interface 11,
MCU12, operational module 13, wake source 14 and SBC15；
Vehicle power supply 2 is sequentially connected power interface 11, SBC15, MCU12, operational module 13；
SBC15 includes external wake source input module 151 and Voltage stabilizing module 152, and external wake source input module 151 connects
Wake source 14, the input terminal connection power interface 11 of Voltage stabilizing module 152, the output terminal connection MCU12 of Voltage stabilizing module 152；
Wake source 14 is also connected with MCU12；
MCU12, for receiving the output signal of wake source 14.
MCU12, for when meeting suspend mode condition, closing, operational module 13 connected to it, to open external wake source defeated
Enter module 151, stop SBC15 to its power supply and SBC15 is controlled to enter suspend mode.Under normal operating conditions, MCU12 roots
According to the state of the dependent instruction control operational module 13 of user.
External wake source input module 151, for after the trigger signal for receiving wake source 14, wake up SBC15 and
SBC15 is opened to power to MCU12.After external wake source input module 151 is opened, it can connect with the state in monitoring and awakening source 14
After the trigger signal for receiving wake source 14, SBC15 is waken up.The SBC being waken up enters normal mode of operation.SBC15 includes voltage stabilizing
Module 152, specifically, the power supply VB inputted from power interface 11 is converted to the low tension needed for MCU12 by Voltage stabilizing module 152
VCC, the Voltage stabilizing module 152 in electrifying startup, open by acquiescence, and the Voltage stabilizing module can be closed by SBC15 built-in commands
152, it powers so as to be turned on and off SBC15 to MCU12.
Vehicle control system provided in this embodiment introduces SBC, since SBC is integrated with voltage-stablizer 152 and external wake
Source input module 151, therefore circuit design is enormously simplified, reduce cost；It is also, defeated using the external wake source on SBC
Enter the external wake function of module 151, in system suspend mode, close the power supply of all modules in addition to SBC, only remain SBC
Partial function, greatly reduce the quiescent dissipation of system, while do not influence the response time of system external portion signal again.
Referring to Fig. 3, the suspend mode control system of vehicle control device is specially the suspend mode control system of Car's door controlling device.
Wake source 14 is specially door contact interrupter and Hall sensor.Door contact interrupter specifically include engine engine lid, side door,
The control switch of the car doors such as sliding door and trunk door.Hall sensor is mounted on inside motor 133, for measurement motor 133
Rotating speed and record car door position, output signal be low and high level or continuous pulse.The output terminal of Hall sensor point
It is not connected to the input pin of external wake source input module 151 and the external counter port of MCU12.
SBC15 further includes the flash drive module 153 being connect with power interface 11.SBC15 enters being controlled by MCU12
Periodic wakeup after suspend mode is that the wake source for needing to power is powered by flash drive module.Corresponding register is set,
The periodic wakeup after SBC15 is in suspend mode opens flash drive module 153 and powers by Hall sensor of periodicity,
That is timing driving Hall sensor work.Specifically, the input connection power interface 11 of flash drive module 153, i.e. Hall pass
The power supply of sensor is the power supply VB that power interface 11 inputs.Hall sensor is driven to work by timing, compared to Hall
Sensor works always, reduces quiescent current.
Operational module 13 specifically includes driving power control module 131, motor drive module 132 and motor 133；
The input terminal connection power interface 11 of driving power control module 131, output terminal connection motor drive module 132,
For switching on and off the input power of motor drive module 132；
The control terminal connection MCU12 of driving power control module 131；
The control terminal connection MCU12 of motor drive module 132, for the work of driving motor 133, to control opening for car door
It closes.
It should be noted that Fig. 3 is illustrated that the door control system of a motor.For the Car's door controlling of multiple motors
System, when a motor action, other motors can also follow by action, therefore it may only be necessary to monitor on one of motor suddenly
That sensor only needs the output terminal of the Hall sensor on a motor accessing external wake source input module 151, right
MCU12 is connected only in the Hall sensor on other motors.
The suspend mode control system of another Car's door controlling device is also disclosed in the present embodiment, and referring to Fig. 4, SBC15 further includes CAN receipts
Send out device 154 and WatchDog Timer 155.
The input terminal connection MCU12 of CAN transceiver 154, the output terminal connection vehicle CAN bus of CAN transceiver 154；
MCU12 is additionally operable to when meeting suspend mode condition, and control CAN transceiver 154 enters can awakening mode, i.e. Standby
Pattern.
CAN transceiver 154, for when SBC is in suspend mode, if receiving CAN message, waking up SBC15.
MCU12 sets the parameter of WatchDog Timer 155 by SPI, and is also to carry out feeding dog by SPI, when
When MCU12 feeds dog not in the defined time, SBC15 can generate a reset signal, for resetting MCU12.Inside SBC15
SPI modules be connected to MCU12, for receiving the state value of the control command of MCU12 and feedback response.
MCU12 is powered by the Voltage stabilizing module 152 of SBC15.MCU12 receives and processes the signal that Car's door controlling device is sent out, so
After send out corresponding order control SBC15, driving power control module 131 and motor drive module 132.
Wake source 14 shown in Fig. 4 includes three kinds, is door contact interrupter, Hall sensor and vehicle CAN bus respectively.Work as hair
Saltus step occurs for the output level of raw door contact interrupter, saltus step, and/or CAN transceiver 154 occur for the output level of Hall sensor
When receiving CAN message, SBC15 is waken up.
The present embodiment provides a kind of dormancy control method of vehicle control device, the suspend mode control applied to above-mentioned vehicle control device
System processed, referring to Fig. 5, the method comprising the steps of：
S11：MCU12 closes operational module 13 connected to it when judging to meet suspend mode condition, then sends wake-up and refers to
It enables, stop power supply instruction and dormancy instruction to SBC15.
Specifically, when MCU12 is not received by control signal within a certain period of time, it is determined that meet suspend mode condition, control
System enters dormant state, to save electric energy.When meeting suspend mode condition, operational module 13 is first closed, that is, closes driving power control
Molding block 131 stops powering to motor drive module 132, and closes motor drive module 132.
S12：After SBC15 receives wake-up instruction, external wake source input module 151 is opened；
After external wake source input module 151 is opened, the state of wake source 14 can be detected in real time, received with realizing
After the trigger signal of wake source 14, wake up SBC15 and enter normal mode of operation.Wake source 14 is specifically as follows door contact interrupter or suddenly
That sensor.
S13：After SBC15 receives stopping power supply instruction, stop powering to MCU12；
Specifically, SBC15 includes Voltage stabilizing module 152, Voltage stabilizing module 152 converts the power supply VB inputted from power interface 11
For the low tension VCC needed for MCU12.Relevant control instruction is sent to SBC15, and then control Voltage stabilizing module by MCU12 by SPI
152 close, and stop to the low tension VCC needed for MCU12 conversions.
S14：After SBC15 receives dormancy instruction, into suspend mode；
S15：External wake source input module 15 wakes up SBC15 after the trigger signal for receiving wake source 14；
Specific wake source 14 can be door contact interrupter or Hall sensor, and external wake source input module 151 is examined in real time
The output level of measuring car door switch or Hall sensor, when saltus step occurs for output level, external wake source input module 151 is defeated
Go out enabling signal, wake up SBC15, that is, SBC15 is made to enter normal mode of operation from suspend mode.
S16：After SBC15 enters normal mode of operation, power to MCU12；
Specifically, after SBC15 enters normal mode of operation, by opening Voltage stabilizing module 12, and then will be from power interface 11
The power supply VB of input is converted to the low tension VCC needed for MCU12.
S17：MCU12 after the power is turned on initializes operational module 13.
The control method of vehicle control system provided in this embodiment, introduces SBC15, when meeting suspend mode condition, closes
The power supply of all modules in addition to SBC15 is closed, only remains the partial function of SBC15；Also, it is called out using the outside on SBC15
The external wake function of awake source input module 151 in system suspend mode, detects the state of wake source 14, and then realize and exist in real time
While reducing the quiescent dissipation of system, and the response time of system external portion signal is not influenced.
After MCU12 initializes operational module 13, whether the output signal for also checking for wake source 14 is effective, if it is
Lost wake-up signal, then system return sleeping process, continues suspend mode, reduces power consumption caused by the false triggering of wake source 14.
Specifically, vehicle CAN bus can also regard a wake source as, and after the completion of the initialization of operational module 13, MCU12
Judge that the level of switch for vehicle output, the pulse frequency of Hall sensor output, and/or vehicle CAN bus start to receive and dispatch to CAN
Whether the CAN message of device 154 is effective；It is if invalid, it is determined that meet suspend mode condition, return to sleeping process；If it is valid,
MCU12 calls corresponding processing function pair, and it is handled, after the completion of processing, within the preset time, if without others
Control command, it is determined that meet suspend mode condition, then system returns to sleeping process, continues suspend mode.
For aforementioned each method embodiment, in order to be briefly described, therefore it is all expressed as to a series of combination of actions, but
It is that those skilled in the art should know, the present invention is not limited by described sequence of movement, because according to the present invention, certain
A little steps may be used other sequences or be carried out at the same time.
Herein, term " comprising ", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, from
And so that the process, method, article or the equipment that include a series of elements not only include those elements, but also including not bright
It the other element really listed or further includes as elements inherent to such a process, method, article, or device.Do not having
In the case of more limitations, the element that is limited by sentence "including a ...", it is not excluded that the process including the element,
Also there are other identical elements in method, article or equipment.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
To the above description of disclosed embodiment of this invention, professional and technical personnel in the field is enable to realize or use this
Invention.A variety of modifications of these embodiments will be apparent for those skilled in the art, institute herein
The General Principle of definition can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore,
The present invention is not intended to be limited to the embodiments shown herein, and is to fit to special with principles disclosed herein and novelty
The consistent most wide range of point.
Claims (10)
1. a kind of suspend mode control system of vehicle control device, including power interface, MCU, operational module and wake source, feature exists
In further including：SBC；
Vehicle power supply is sequentially connected the power interface, the SBC, the MCU, the operational module；
The SBC includes external wake source input module and Voltage stabilizing module, is called out described in the connection of external wake source input module
Awake source, the input terminal of the Voltage stabilizing module connect the power interface, and the output terminal of the Voltage stabilizing module connects the MCU；
The wake source is also connected with the MCU；
The MCU, for receiving the output signal of the wake source；
The MCU is additionally operable to when meeting suspend mode condition, and the closing operational module connected to it, the unlatching outside are called out
Awake source input module stops the SBC to its power supply and the SBC is controlled to enter suspend mode；
External wake source input module, for after the trigger signal for receiving the wake source, waking up the SBC, with
And it opens the SBC and powers to the MCU.
2. system according to claim 1, which is characterized in that the SBC is further included：CAN transceiver；
The input terminal of the CAN transceiver connects the MCU, the output terminal connection vehicle CAN bus of the CAN transceiver；
The MCU is additionally operable to when meeting suspend mode condition, and the CAN transceiver is controlled to enter can awakening mode；
The CAN transceiver, for when the SBC is in suspend mode, if receiving CAN message, wake up described in
SBC。
3. system according to claim 1, which is characterized in that the SBC is further included：It is connect with the power interface
Flash drive module；
The SBC for the periodic wakeup after suspend mode is entered by MCU controls, passes through the flash drive module
For the wake source power supply for needing to power.
4. system according to claim 3, which is characterized in that the wake source for needing to power, specially：Hall sensing
Device.
5. system according to claim 1, which is characterized in that the SBC is further included：WatchDog Timer.
6. system according to claim 1, which is characterized in that the operational module specifically includes：Driving power controls mould
Block, motor drive module and motor；
The input terminal of the driving power control module connects the power interface, and output terminal connects the motor drive module,
For switching on and off the input power of the motor drive module；
The control terminal of the driving power control module connects the MCU；
The control terminal of the motor drive module connects the MCU, for driving the work of the motor, to control opening for car door
It closes.
7. system according to claim 6, which is characterized in that the wake source, specially：Door contact interrupter.
8. a kind of dormancy control method of vehicle control device, which is characterized in that applied to the system as claimed in claim 1, institute
The method of stating includes：
The MCU closes the operational module connected to it when judging to meet suspend mode condition, then send wake up instruction,
Stop power supply instruction and dormancy instruction to the SBC；
After the SBC receives the wake-up instruction, external wake source input module is opened；
After the SBC receives the stopping power supply instruction, stop powering to the MCU；
After the SBC receives the dormancy instruction, into suspend mode；
External wake source input module wakes up the SBC after the trigger signal for receiving the wake source；
After the SBC enters normal mode of operation, power to the MCU；
The MCU after the power is turned on initializes the operational module.
9. according to the method described in claim 8, it is characterized in that, after the SBC receives the dormancy instruction, into stopping
After sleep mode step, further include：
The SBC periodic wakeups are that the wake source for needing to power is powered by flash drive module.
10. method according to claim 8 or claim 9, which is characterized in that after the completion of operational module initialization, also wrap
It includes：
The MCU judges whether the signal of the wake source is effective, if in vain, it is determined that meet suspend mode condition.
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