CN101441504A - Central control computer applied to transportation means and related power supply management method thereof - Google Patents
Central control computer applied to transportation means and related power supply management method thereof Download PDFInfo
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- CN101441504A CN101441504A CNA2007101693178A CN200710169317A CN101441504A CN 101441504 A CN101441504 A CN 101441504A CN A2007101693178 A CNA2007101693178 A CN A2007101693178A CN 200710169317 A CN200710169317 A CN 200710169317A CN 101441504 A CN101441504 A CN 101441504A
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Abstract
The invention relates to a central control computer applied to a vehicle, which comprises a central processing unit and a programmable logic device. The central processing unit is used for controlling the operation of the central control computer. The programmable logic device is coupled with the central processing unit and a power supply state machine is arranged therein for managing the power supply state of the central control computer. The power supply state machine comprises a close state, a running state and a specific state, and the specific state is positioned between the close state and the running state.
Description
Technical field
The present invention relates to a kind of middle control computer and line related management method thereof that is applied to the vehicles, a particularly a kind of built-in power state machine is in programmable logic device and the middle control computer and the line related management method thereof of managing the power supply status of control computer in this via this power state machine.
Background technology
In recent years, along with people are more and more many for the requirement that automobile is equipped with, " vehicular computer " topic (carPC) begins hot topic, automobile no longer is a kind of vehicles, a kind of especially center that various digital entertainments are provided similarly is GPS navigation system, reversing photography, watch Digital Television or DVD playing back, browsing internet in car, dial the basic outfit that function such as phone has all become present automobile.
Therefore, the vehicular computer that how to provide low-power consumption, high-effect, diversification to use to satisfy user's various demands, promptly becomes designing car with one of most important problem of computing machine.The power control system of vehicular computer is to be implemented by software mode at present; usually need expend a lot of time and restart vehicular computer; and regular meeting has when machine or the generation of unsettled situation, and suitable inconvenience and regular meeting cause user's puzzlement for the user.
Summary of the invention
Therefore, one of purpose of the present invention is to propose a kind of middle control computer and line related management method thereof that is applied to the vehicles, to solve the above problems.
The present invention discloses a kind of middle control computer that is applied to the vehicles.Should comprise a CPU (central processing unit) and a programmable logic device by middle control computer.This CPU (central processing unit) is used for controlling the running of this control computer.This programmable logic device is coupled to this CPU (central processing unit), and the built-in power state machine of this programmable logic device is in order to manage the power supply status of control computer in this.Wherein, this power state machine comprises a closed condition, an operating condition and a particular state, and this particular state is between this closed condition and this operating condition.
In one embodiment, this particular state is an idle state.When receiving in one the control computer off signal, this power state machine switches to this idle state by this operating condition; When time that enters this idle state during greater than one first schedule time, this power state machine switches to this closed condition by this idle state; When the time that enters this idle state less than one first schedule time and when receiving in one the control computer starting-up signal, this power state machine switches to this operating condition by this idle state.
In one embodiment, this particular state is a battery error condition.When the supply voltage of a cell apparatus was lower than a predetermined voltage, this power state machine switched to this battery error condition by this operating condition; When time that the supply voltage of this cell apparatus is lower than this predetermined voltage during less than one second schedule time, this power state machine switches to this operating condition by this battery error condition.
In one embodiment, this power state machine comprises a power supply off-mode in addition, in order to close the power supply of this CPU (central processing unit) and this programmable logic device.
In one embodiment, this power state machine comprises a programmable logic device enabled state in addition, is used to provide power supply and gives this programmable logic device.
In one embodiment, this power state machine comprises a power enable state in advance in addition, and being used for preparation providing power supply to this CPU (central processing unit).
In one embodiment, control computer comprises the dog timer of guarding the gate in addition in this, is coupled to this programmable logic device and this CPU (central processing unit).
In one embodiment, this power state machine comprises the dog timer Reset Status of guarding the gate in addition, and this CPU (central processing unit) is used for resetting.
In one embodiment, these vehicles are automobiles.
The present invention discloses a kind of method for managing power supply in addition, is applied on the middle control computer of the vehicles, and control computer comprises a CPU (central processing unit), a programmable logic device and a peripheral cell in this.This method comprises: set up a power state machine on this programmable logic device, wherein, this power state machine comprises a closed condition, an operating condition, reaches an idle state between this closed condition and this operating condition; And the power supply status of managing control computer in this via this power state machine.
In one embodiment, this power state machine comprises a closed condition, an operating condition, reaches a particular state between this closed condition and this operating condition.
In one embodiment, this particular state is an idle state.
In one embodiment, this particular state is a battery error condition.
Description of drawings
Fig. 1 is applied to the synoptic diagram of an embodiment of the middle control computer of vehicles for the present invention.
Fig. 2 is the synoptic diagram of an example operation of power state machine shown in Figure 1.
Fig. 3 is the synoptic diagram of another example operation of power state machine shown in Figure 1.
Fig. 4 is the synoptic diagram of another example operation of power state machine shown in Figure 1.
The reference numeral explanation
Control computer in 100
110 CPU (central processing unit)
120 programmable logic devices
130 power state machine
140 WatchDog Timers
150 control area net network interfaces
162 alarms
164 human-computer interface devices
166 audio and video players
170 mobile phones
The CV1 count value
The CL1 clear instruction
SR1 replacement indicator signal
The SR2 reset indication
The ST1 starting-up signal
The ST2 indicator signal
The ST3 control signal
202 closed conditions
204 operating conditions
206 engines start state
208 idle states
210 house dog Reset Status
301 battery mistake and treatment states
306 power supply off-modes
308 programmable logic device enabled state
310 power enable states in advance
302 battery fault processing states
304 battery error conditions.
Embodiment
Please refer to Fig. 1, Fig. 1 is applied to the synoptic diagram of an embodiment of the middle control computer 100 of vehicles for the present invention.In control computer 100 comprise a CPU (central processing unit) 110, a programmable logic device (programmable logic device) 120, one power state machine (power state machine) 130, a dog timer (watchdog counter) 140, one control area net network (the controllerarea network that guards the gate, CAN) interface 150, an alarm 162, a man-machine interface (human machineinterface, HMI) device 164, one audio and video player (AV player) 166 and one mobile phone 170.Note that system configuration shown in Figure 1 only as the example explanation, is not to be used as restriction of the present invention.CPU (central processing unit) 110 is used for controlling the running of control computer 100, programmable logic device 120 is coupled to CPU (central processing unit) 110, and be built in the power state machine 130 in the programmable logic device 120, and via the power supply status of power state machine 130 control CPU (central processing unit) 110 with control computer 100 in the management.
Please continue with reference to figure 1, WatchDog Timer 140 is coupled to programmable logic device 120 and CPU (central processing unit) 110, be used for receiving 110 clear instruction CL1 that regularly transmit of CPU (central processing unit), and periodically remove a count value CV1 according to clear instruction CL1, and when count value CV1 reaches a predetermined value, export a replacement indicator signal SR1 to programmable logic device 120, at this moment, programmable logic device 120 can need to reset for CPU (central processing unit) 110 by output one reset indication SR2 with control computer in informing 100, that is, when count value CV1 reaches (equaling or exceeding) predetermined value, expression CPU (central processing unit) 110 does not normally operate with output clear instruction CL1, at this moment, CPU (central processing unit) 110 may be in when the machine state and need reset, so the just exportable replacement indicator signal of WatchDog Timer 140 SR1 informs that to programmable logic device 120 CPU (central processing unit) 110 does not normally operate at present.As shown in Figure 1, control area net network interface 150 is coupled to programmable logic device 120, and alarm 162, human-computer interface device 164 and audio and video player 166 are connected to programmable logic device 120 by control area net network interface 150, and mobile phone 170 is coupled to CPU (central processing unit) 110.Will explanation in detail in the following examples about how operating between alarm 162, human-computer interface device 164 (it can comprise devices such as display and input control element), audio and video player 166, CPU (central processing unit) 110, mobile phone 170 and the programmable logic device 120.
Note that above-mentioned programmable logic device 120 can (complex programmable logic device CPLD) implement, but the present invention is not limited thereto, also can be the programmable logic device of other kind by a complex programmable logic device.In one embodiment, these vehicles are automobiles, and middle control computer 100 is the vehicular computers that are applied on the automobile, but only for being used for illustrating one of example of the present invention, but not restrictive condition of the present invention.
Please refer to Fig. 2, Fig. 2 is the synoptic diagram of an example operation of power state machine 130 shown in Figure 1.Power state machine 130 is started state 206, an idle state 208 and a house dog Reset Status 210 including (but not limited to) a closed condition 202, an operating condition 204, an engine.Please in the lump with reference to figure 1 so that further specify the running of power state machine 130.In the present embodiment, middle control computer 100 is the vehicular computers that are applied on the automobile, the state that control computer 100 is not opened as yet in then above-mentioned closed condition 202 expressions.202 o'clock in off position, CPU (central processing unit) 110 is in (OFF) state of closing, only a part of element, as: programmable logic device 120, control area net network interface 150, alarm 162 and mobile phone 170 are in unlatching (0N) state, with the generation of the processing events of awaiting orders, hereinafter will be discussed.When the user starts up the car (control computer 100 in promptly opening), just enter operating condition 204 by closed condition 202, control computer 100 has been opened and the state of normal operation in operating condition 204 expression, and all elements 110,120,140,150,162,164,166,170 of control computer 100 are in unlatching (ON) state in this moment.When operating condition 204, programmable logic device 120 has operated normally, the power supply status of control computer 100 in can managing via power state machine 130.The state that engine starts state 206 expressions to start the engine, that is when the user starts the engine, the power state machine 130 of programmable logic device 120 can be turned off the power supply of some peripheral cells at this moment, the power supply of for example turning off human-computer interface device 164 and audio and video player 166, so that more power supply is offered the use that starts the engine, and power state machine 130 can enter engine by operating condition 204 and starts state 206, treat that engine starts after, power state machine 130 just can be switched the commentaries on classics state 204 that backhauls.
In the way formerly, when user's closing automobile (that is close engine and power supply and enter closed condition), can be directly with middle control computer 100 shutdown, but if the user only need leave a few minutes, just need to relaunch automobile afterwards, control computer 100 (entering operating condition by closed condition) can be wasted a lot of time in restarting this moment, and is very inconvenient for the user.Therefore, embodiments of the invention are that idle state 208 is added between operating condition 204 and the closed condition 202 to solve this problem, when supposing at the beginning, power state machine 130 is in operating condition 204 times, power state machine 130 just switched to idle state 208 by operating condition 204 but not directly entered off-mode 202 if programmable logic device 120 receives control computer off signal in (closing engine and power supply) this moment; If the time that enters idle state 208, power state machine 130 can switch to closed condition 202 by idle state 208 during greater than one first schedule time T1; Yet, if the time that enters idle state 204 receives control computer starting-up signal in during first schedule time T1,130 of power state machine are switched to operating condition 204 and electric power management mechanism can promptly be enabled by idle state 208, thus, when user's closing automobile, power state machine 130 just enters idle state 208 by operating condition 204, at this moment, human-computer interface device 164 and audio and video player 166 are closed, with the power consumption of control computer 100 in reducing.(in first schedule time T1) just can relaunch automobile if the user only leaves a few minutes, then power state machine 130 is just got back to operating condition 204 by idle state 208, (surpassing first schedule time T1) do not have to relaunch automobile if it's a period of time has past the user, and then power state machine 130 switches to closed condition 202 by idle state 208.
Suppose to be in operating condition 204 times the corresponding one first performance number P1 of the consumed power of middle control computer 100 in power state machine 130; When power state machine 130 is in idle state 208 times, the corresponding one second performance number P2 of the consumed power of middle control computer 100; When power state machine 130 is in closed condition 202 times, corresponding one the 3rd performance number P3 of the consumed power of middle control computer 100, then three's watt level is P1〉P2〉P3, therefore, when user's closing automobile, according to above-mentioned explanation, power state machine 130 can enter idle state 208 by operating condition 204 earlier, thus, and in first schedule time T1, not only power consumption can be reduced, and when the user relaunches automobile, operating condition 204 can also be promptly be returned to.
Please continue with reference to figure 2, embodiments of the invention are set up WatchDog Timer Reset Status 210 in addition in power state machine 130, control computer 100 in being used for resetting.Fig. 1 please be cooperated so that explanation, suppose that power state machine 130 is in operating condition 204 at the beginning, engine starts under any situation of state 206, if the situation of CPU (central processing unit) 110 when machine takes place, because WatchDog Timer 140 can't receive the clear instruction CL1 that CPU (central processing unit) 110 is transmitted, thereby can't regularly remove count value CV1, when count value CV1 reached this predetermined value, WatchDog Timer 140 can be exported replacement indicator signal SR1 to programmable logic device 120.When programmable logic device 120 received replacement indicator signal SR1, power state machine 130 entered WatchDog Timer Reset Status 210, this moment programmable logic device 120 CPU (central processing unit) 110 of can output reset indication SR2 resetting.After CPU (central processing unit) 110 was reset, power state machine 130 switched to operating condition 204 by WatchDog Timer Reset Status 210.Thus, when the situation of machine takes place to work as CPU (central processing unit) 110, can reset CPU (central processing unit) 110 so that middle control computer 100 recovers normal operation (being operating condition 204) by entering WatchDog Timer Reset Status 210, that is, the function of the running of the monitoring CPU (central processing unit) 110 that is provided via WatchDog Timer 140, the stability of control computer 100 in can significantly promoting.
Please refer to Fig. 3, Fig. 3 is the synoptic diagram of another example operation of power state machine 130 shown in Figure 1.Power state machine 130 is including (but not limited to) closed condition 202, operating condition 204, a battery mistake and treatment state 301, a power supply off-mode 306, a programmable logic device enabled state 308 and power enable state 310 in advance, wherein, battery mistake and treatment state 301 comprise battery fault processing state 302 and battery error condition 304 again.In the present embodiment, when the supply voltage that detects a cell apparatus (for example automobile-used 12V battery) is lower than a predetermined voltage (for example 7.7V), power state machine 130 can be directly enters battery fault processing state 302 in battery mistake and the treatment state 301 by current state.Suppose that power state machine 130 is in operating condition 204 times at the beginning, if when detecting the supply voltage of this cell apparatus and being lower than this predetermined voltage, power state machine 130 can enter battery mistake and treatment state 301 by operating condition 204, be divided into two steps, at first enter battery fault processing state 302 available data or default value are backed up to a memory storage (as: flash memory), to avoid data or default value to run off, then, after a special time, enter the power supply of battery error condition 304 with control computer 100 subelements in closing, for instance, when power state machine 130 enters battery error condition 304, then except programmable logic device 120, real-time clock (real-time clock, RTC) outside generator and the memory storage (for example DDR internal memory), other element 110 of middle control computer 100,140,150,162,164,166,170 all can powered-down and decommission.When time that the supply voltage of this cell apparatus is lower than this predetermined voltage during less than one second schedule time T2, the pressure drop of supply voltage is considered as temporary incident, power state machine 130 meetings this moment are switched by battery error condition 304 backhaul commentaries on classics state 204, and recovers all other elements power supplies.When time that the supply voltage of this cell apparatus is lower than this predetermined voltage during greater than second schedule time T2, judge that then this cell apparatus is complete power shortage, therefore power state machine 130 just switches to power supply off-mode 306 by battery error condition 304, power supply in order to control computer 100 in closing, at this moment, all elements 110,120,140,150,162,164,166,170 of middle control computer 100 enter (OFF) state of closing.In other embodiments of the invention, if power state machine 130 enters battery mistake and treatment state 301 by closed condition 202, then when the pressure drop of supply voltage was considered as temporary incident, power state machine 130 can be switched back closed condition 202 by battery mistake and treatment state 301 again.
Suppose to be in operating condition 204 times the corresponding one first magnitude of voltage V1 of the supply voltage of a cell apparatus of middle control computer 100 in power state machine 130; When power state machine 130 is in the battery error condition 304 times, the corresponding one first magnitude of voltage V2 of the supply voltage of this cell apparatus, then both voltage swings are V2＜V1, thus, by battery fault processing state 302 and battery error condition 304, not only can the emergency backup available data and default value run off avoiding, whether the supply voltage that can rule out cell apparatus does not again really have electricity, and makes corresponding processing.
Please continue with reference to figure 3, after entering power supply off-mode 306, the user has changed a new cell apparatus again, and this moment, programmable logic device 120 and power state machine 130 can be carried out initialized action.Next, illustrate in two kinds of situation, first kind of situation is when the supply voltage of new cell apparatus reaches a predetermined voltage (for example 7.7V or other voltage), power state machine 130 can switch to programmable logic device enabled state 308 by power supply off-mode 306, in order to provide power supply, to open programmable logic device 120 to programmable logic device 120; If the time that the supply voltage of this cell apparatus can reach this predetermined voltage is during greater than one the 3rd schedule time T3, then power state machine 130 switches to power enable state 310 in advance by programmable logic device enabled state 308 again, provides power supply to the element except programmable logic device 120 110,120,140,150,162,164,166,170 in the middle control computer 100 in order to preparation; When follow-up programmable logic device 120 received control computer starting-up signal in (starting the engine and power-on), power state machine 130 just switched to operating condition 204 by power enable state 310 in advance.Second kind of situation is when the supply voltage of new cell apparatus reaches this predetermined voltage, and power state machine 130 can switch to programmable logic device enabled state 308 by power supply off-mode 306; If the supply voltage of this cell apparatus is reduced to again under this predetermined voltage, and the time that is lower than this predetermined voltage, then power state machine 130 can be switched telegram in reply source off-modes 306 from programmable logic device enabled state 308 again during greater than one the 4th schedule time T4; If the time that the supply voltage of this cell apparatus reaches this predetermined voltage is during greater than one the 5th schedule time T5, just then power state machine 130 switches to power enable state 310 in advance by programmable logic device enabled state 308; Afterwards, if when the supply voltage of this cell apparatus is reduced under this predetermined voltage again, power state machine 130 is switched back programmable logic device enabled state 308 by power enable state 310 in advance again.
Certainly, the various states of above-mentioned power state machine 130 only are the of the present invention one real example of doing, in other embodiments, can design more state in power state machine 130, select with the 100 more power supply controls of control computer in providing, for instance, all functions with Fig. 2 and Fig. 3 are integrated in the same power state machine 130.Please refer to Fig. 4, Fig. 4 is the synoptic diagram of another example operation of power state machine 130 shown in Figure 1.As shown in the figure, the latter half comprises closed condition 202, operating condition 204, the engine that Fig. 2 mentions and starts state 206, idle state 208 and house dog Reset Status 210, the first half comprises battery mistake that Fig. 3 mentions and treatment state 301, power supply off-mode 306, programmable logic device enabled state 308 and power enable state 310 in advance, please refer to Fig. 2 description relevant about wherein details with running, do not repeat them here with Fig. 3.
Please continue with reference to figure 1, next, giving one example illustrates each element shown in Figure 1, how to integrate application with programmable logic device 120.
In first kind of application, suppose that the user is not onboard, middle control computer 100 is in closed condition 202 times, as if having the burglar to enter automobile and having triggered alarm 162, alarm 162 just can transmit a starting-up signal ST1 to programmable logic device 120 by control area net network interface 150, this moment, power state machine 130 meetings enter operating condition 204 by closed condition 202, used to start CPU (central processing unit) 110.Then, give CPU (central processing unit) 110 but program logic device 120 transmits an indicator signal ST2, then, CPU (central processing unit) 110 can be sent a control signal ST3 and give mobile phone 170, notifies it to send out a caution note and gives the user.
Above-mentioned example only illustrates application of the present invention for being used for, and is not restrictive condition of the present invention, know this skill person and should understand, and under spirit of the present invention, all be feasible about the various variations of the application of programmable logic device 120.
Above-described embodiment only is used for technical characterictic of the present invention is described, is not to be used for limiting to category of the present invention.The programmable logic device of being mentioned in the literary composition 120 can be implemented by a complex programmable logic device (CPLD), but is not limited thereto, and also can be the programmable logic device of other kind.In one embodiment, these vehicles are automobiles, and middle control computer 100 is the vehicular computers that are applied on the automobile, but only for being used for illustrating one of example of the present invention, but not restrictive condition of the present invention.The alarm of being mentioned in the literary composition 162, human-computer interface device 164, audio and video player 166, mobile phone 170 are inessential element (optional element), only for being used for illustrating application of the present invention, knowing this skill person should understand, and also can use other element to come to integrate application with programmable logic device 120.The state that note that power state machine 130 be not limited to the present invention for embodiment, also can design more state in power state machine 130, make its provide in control computer 100 more function.
As from the foregoing, the invention provides a kind of middle control computer 100 and line related method of state management thereof that is applied to vehicles (for example automobile), by built-in power state machine 130 in programmable logic device 120, the power supply status of control computer 100 in can editing easily and manage.Moreover, the extra idle state 208 that increases is between operating condition 204 and closed condition 202, when user's closing automobile (closing engine and power supply), power state machine 130 just is introduced into idle state 208 by operating condition 204 but not directly enters closed condition 202, the power consumption of control computer 100 under idle state 208 is not only not high in this moment, and can also promptly get back to operating condition 204 when the user relaunches automobile.In addition, when CPU (central processing unit) 110 takes place when machine, can by enter WatchDog Timer Reset Status 210 reset in control computer 100, and then the stability of control computer 100 in the lifting significantly.In addition, when the situation of the supply undertension that cell apparatus takes place, by battery fault processing state 302 and battery error condition 304, not only can the emergency backup available data and default value run off avoiding, whether the supply voltage that can rule out cell apparatus does not again really have electricity, and makes corresponding processing.By control computer 100 in provided by the present invention and line related method of state management thereof, not only save time, power saving, facility and do not have when machine or the generation of unsettled situation, provide the user more to select.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (17)
1. middle control computer that is applied to the vehicles comprises:
One CPU (central processing unit) is used for controlling the running of control computer in this; And
One programmable logic device is coupled to this CPU (central processing unit), and the built-in power state machine of this programmable logic device is in order to manage the power supply status of control computer in this.
2. control computer in as claimed in claim 1, wherein, this power state machine comprises a closed condition, an operating condition and an idle state, and this idle state is between this closed condition and this operating condition, wherein, corresponding one second state transition condition between corresponding one first state transition condition between this closed condition and this operating condition, this closed condition and this idle state, and a corresponding third state switch condition between this operating condition and this idle state; And
Wherein, when this power state machine is under this operating condition, corresponding one first performance number of the consumed power of control computer in this; When this power state machine is under this idle state, corresponding one second performance number of the consumed power of control computer in this; When this power state machine is under this closed condition, corresponding one the 3rd performance number of the consumed power of control computer in this; And this second performance number is between this first performance number and the 3rd performance number.
3. control computer in as claimed in claim 2, wherein, when this third state switch condition was set up, this power state machine switched to this idle state by this operating condition; And this third state switch condition is to receive control computer off signal in; And wherein, when this second state transition condition was set up, this power state machine switched to this closed condition by this idle state, and this second state transition condition is to enter the time of this idle state greater than one first schedule time.
4. control computer in as claimed in claim 2, wherein, when this third state switch condition is set up, this power state machine switches to this operating condition by this idle state, and this third state switch condition be enter this idle state time less than one first schedule time and receive control computer starting-up signal in.
5. control computer in as claimed in claim 1, it comprises a cell apparatus in addition, wherein, this power state machine comprises a closed condition, an operating condition and a battery mistake and a treatment state, and this battery mistake and treatment state are between this closed condition and this operating condition;
Wherein, corresponding one first state transition condition between this closed condition and this operating condition, corresponding one second state transition condition between this closed condition and this battery mistake and the treatment state, and a corresponding third state switch condition between this operating condition and this battery mistake and the treatment state;
Wherein, when this power state machine is under this operating condition, corresponding one first magnitude of voltage of the supply voltage of this cell apparatus; When this power state machine is under this battery mistake and the treatment state, corresponding one second magnitude of voltage of the supply voltage of this cell apparatus; And this second magnitude of voltage is less than this first magnitude of voltage.
6. control computer in as claimed in claim 5, wherein, when this third state switch condition was set up, this power state machine switched to this battery mistake and treatment state by this operating condition; And the supply voltage that this third state switch condition is this cell apparatus is lower than a predetermined voltage.
7. control computer in as claimed in claim 5, wherein, a corresponding four condition switch condition in addition between this operating condition and this battery mistake and the treatment state, when this four condition switch condition establishment, this power state machine switches to this operating condition by this battery mistake and treatment state; And the supply voltage that this four condition switch condition is this cell apparatus is lower than the time of this predetermined voltage less than one second schedule time;
Wherein, this power state machine comprises a power supply off-mode in addition, in order to close the power supply of this CPU (central processing unit) and programmable logic device; And
When time that the supply voltage of this cell apparatus is lower than this predetermined voltage greater than this second schedule time, then this power state machine switches to this power supply off-mode by this battery mistake and treatment state.
8. control computer in as claimed in claim 7, wherein, this power state machine comprises a programmable logic device enabled state in addition, is used to provide power supply and gives this programmable logic device; And when the supply voltage of this cell apparatus reached this predetermined voltage, this power state machine switched to this programmable logic device enabled state by this power supply off-mode; And
Wherein, when the supply voltage drop of this cell apparatus is low to moderate under this predetermined voltage, and time that is lower than this predetermined voltage during greater than one the 3rd schedule time, then this power state machine is switched back this power supply off-mode by this programmable logic device enabled state.
9. control computer in as claimed in claim 7, wherein, this power state machine comprises a programmable logic device enabled state in addition, is used to provide power supply and gives this programmable logic device; And when the supply voltage of this cell apparatus reached this predetermined voltage, this power state machine switched to this programmable logic device enabled state by this power supply off-mode;
Wherein, this power state machine comprises a power enable state in advance in addition, and being used for preparation providing power supply to this CPU (central processing unit); And when the supply voltage of this cell apparatus reached this predetermined voltage, this power state machine switched to this power enable state in advance by this programmable logic device enabled state;
Wherein, when the supply voltage of this cell apparatus is lower than this predetermined voltage, this power state machine by this in advance the power enable state switch back this programmable logic device enabled state; And
Wherein, when receiving in one the control computer starting-up signal, this power state machine by this in advance the power enable state switch to this operating condition.
10. control computer in as claimed in claim 1, it comprises a cell apparatus in addition, wherein, this power state machine comprises a closed condition, an operating condition and a battery mistake and a treatment state, and this battery mistake and treatment state are between this closed condition and this operating condition;
Wherein, corresponding one first state transition condition between this closed condition and this operating condition, corresponding one second state transition condition between this closed condition and this battery mistake and the treatment state, and a corresponding third state switch condition between this operating condition and this battery mistake and the treatment state;
Wherein, when this power state machine is under this operating condition, corresponding one first magnitude of voltage of the supply voltage of this cell apparatus; When this power state machine is under this battery mistake and the treatment state, corresponding one second magnitude of voltage of the supply voltage of this cell apparatus; And this second magnitude of voltage is less than this first magnitude of voltage; And
Wherein, this battery mistake and treatment state include a battery fault processing state and a battery error condition; And when the supply voltage of this cell apparatus was lower than a predetermined voltage, this power state machine entered this battery fault processing state carrying out data backup, and enters this battery error condition to close the power supply of this CPU (central processing unit) after one second schedule time.
11. control computer in as claimed in claim 1, it comprises in addition:
One dog timer of guarding the gate, be coupled to this programmable logic device and this CPU (central processing unit), be used for counting a count value, wherein, when this count value reaches a predetermined value, this WatchDog Timer is exported a replacement indicator signal to this programmable logic device, and this programmable logic device is exported a reset indication this CPU (central processing unit) of resetting; And
Wherein, this power state machine comprises the dog timer Reset Status of guarding the gate in addition, and this CPU (central processing unit) is used for resetting; When this programmable logic device received this replacement indicator signal, this power state machine entered this WatchDog Timer Reset Status; And after this CPU (central processing unit) was reset, this power state machine switched to this operating condition by this WatchDog Timer Reset Status.
12. a method for managing power supply is applied on the middle control computer of the vehicles, control computer comprises a CPU (central processing unit), a programmable logic device and a peripheral cell in this, and this method comprises:
Set up a power state machine on this programmable logic device, wherein, this power state machine comprises a closed condition, an operating condition, reaches an idle state between this closed condition and this operating condition;
And
Manage the power supply status of control computer in this via this power state machine.
13. method as claimed in claim 12 is wherein worked as this power state machine and is under this operating condition, this CPU (central processing unit), this programmable logic device and this peripheral cell are opening, and corresponding one first performance number of the consumed power of control computer in being somebody's turn to do; When this power state machine is under this idle state, this peripheral cell is a closed condition, and should in corresponding one second performance number of consumed power of control computer; When this power state machine is under this closed condition, this CPU (central processing unit) and this peripheral cell are closed condition, and corresponding one the 3rd performance number of the consumed power of control computer in being somebody's turn to do, wherein, this second performance number is between this first performance number and the 3rd performance number, and this method comprises in addition:
When receiving in one the control computer off signal, this power state machine switches to this idle state by this operating condition;
When time that enters this idle state during greater than one first schedule time, this power state machine switches to this closed condition by this idle state; And
When receiving in one the control computer starting-up signal, this power state machine switches to this operating condition by this idle state.
14. method as claimed in claim 13, wherein this power state machine comprises a battery mistake and a treatment state and a power supply off-mode in addition, and when this power state machine is under this operating condition, this CPU (central processing unit), this programmable logic device and this peripheral cell are opening, and corresponding one first performance number of the consumed power of control computer in being somebody's turn to do; When this power state machine is under this idle state, this peripheral cell is a closed condition, and should in corresponding one second performance number of consumed power of control computer; When this power state machine is under this closed condition, this CPU (central processing unit) and this peripheral cell are closed condition, and corresponding one the 3rd performance number of the consumed power of control computer in being somebody's turn to do, wherein, this second performance number is between this first performance number and the 3rd performance number, and this method comprises in addition:
When a battery supplied voltage is lower than a predetermined voltage, enter this battery mistake and treatment state, wherein under this battery mistake and treatment state, this CPU (central processing unit) enters closed condition;
When time that this battery supplied voltage is lower than this predetermined voltage during, switch to this operating condition by this battery mistake and treatment state less than one second schedule time; And
When time that this battery supplied voltage is lower than this predetermined voltage during greater than this second schedule time, switch to this power supply off-mode by this battery mistake and treatment state, wherein, under this power supply off-mode, this CPU (central processing unit), this programmable logic device and this peripheral cell are closed condition.
15. method as claimed in claim 14, wherein, this power state machine comprises a programmable logic device enabled state and power enable state in advance in addition, and this method comprises in addition:
When this battery supplied voltage reaches this predetermined voltage, switch to this programmable logic device enabled state by this power supply off-mode, wherein, make under the energy state at this programmable logic device, this programmable logic device enters opening;
When this battery supplied voltage drop is low to moderate under this predetermined voltage, and time that is lower than this predetermined voltage during greater than one the 3rd schedule time, switch back this power supply off-mode by this programmable logic device enabled state; And
When time that this battery supplied voltage reaches this predetermined voltage during greater than one the 3rd schedule time, switch to this power enable state in advance by this programmable logic device enabled state, provide power supply to this CPU (central processing unit) and this peripheral cell in order to preparation.
16. method as claimed in claim 15, it comprises in addition:
When this battery supplied voltage drop is low to moderate this predetermined voltage following time, by this in advance the power enable state switch back this programmable logic device enabled state; And
When receiving in one the control computer starting-up signal, by this in advance the power enable state switch to this operating condition.
17. method as claimed in claim 12, wherein, this power state machine comprises the dog timer Reset Status of guarding the gate in addition, and this method comprises in addition:
Produce a count value;
When this count value reaches a predetermined value, enter this WatchDog Timer Reset Status, with this CPU (central processing unit) of resetting; And
After this CPU (central processing unit) of resetting, switch to this operating condition by the WatchDog Timer Reset Status.
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| CN2007101693178A CN101441504B (en) | 2007-11-22 | 2007-11-22 | Central control computer applied to transportation means and related power supply management method thereof |
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| CN2007101693178A CN101441504B (en) | 2007-11-22 | 2007-11-22 | Central control computer applied to transportation means and related power supply management method thereof |
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Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5530879A (en) * | 1994-09-07 | 1996-06-25 | International Business Machines Corporation | Computer system having power management processor for switching power supply from one state to another responsive to a closure of a switch, a detected ring or an expiration of a timer |
| US7240222B1 (en) * | 2003-02-27 | 2007-07-03 | National Semiconductor Corporation | Using ACPI power button signal for remotely controlling the power of a PC |
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- 2007-11-22 CN CN2007101693178A patent/CN101441504B/en active Active
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