CN104527648B - Automobile double accelerator pedal signal processing method and system - Google Patents
Automobile double accelerator pedal signal processing method and system Download PDFInfo
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- CN104527648B CN104527648B CN201410736309.7A CN201410736309A CN104527648B CN 104527648 B CN104527648 B CN 104527648B CN 201410736309 A CN201410736309 A CN 201410736309A CN 104527648 B CN104527648 B CN 104527648B
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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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/04—Monitoring the functioning of the control system
- B60W50/045—Monitoring control system parameters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
-
- 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
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/02—Ensuring safety in case of control system failures, e.g. by diagnosing, circumventing or fixing failures
- B60W50/0205—Diagnosing or detecting failures; Failure detection models
-
- 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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0604—Throttle position
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Transportation (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Traffic Control Systems (AREA)
Abstract
A kind of automobile double accelerator pedal signal processing method and system, including：S) first, second Reflector is reset；A) first, second road binders gate signal is sampled；B) judge that the ratio of first, second current road binders gate signal whether in the range of predetermined ratio and first via throttle signal is whether in the first preset range, if it is, turning d), otherwise turns c)；If c) first via throttle signal is not in the first preset range, by Fisrt fault flag set, if the second road binders gate signal not in the second preset range, by the second Reflector set；D) first via throttle signal is responded when Fisrt fault is masked as zero, is turned a)；The second road binders gate signal is responded when Fisrt fault mark is set and the second Reflector is zero, is turned a)；When first, second Reflector is set, refusal respond first via throttle signal and the second road binders gate signal, turn a).The present invention chooses normal signal all the way and carries out throttle signal switching, and reliability is high.
Description
Technical field
The present invention relates to field of automobile electronic control, more particularly to a kind of automobile double accelerator pedal signal processing method and it is
System.
Background technology
Gas pedal (also referred to as accelerator) is a very important equipment on automobile, is the input of engine torque command
Source, its reliability are directly connected to traffic safety.Accelerator used in currently the majority automobile is electronic type, i.e., directly
The aperture of accelerator is converted into analog voltage and is transported to entire car controller.In order to increase reliability, some accelerators are using double
Passage designs, i.e. two analog signals of output simultaneously, and the two analog signals are into twice of relation and pass proportional to pedal aperture
System.
Processing strategy at present for double throttle signals is relatively simple, mainly monitors whether this two-way throttle keeps
Close to twice of relation, if both ratios exceed normal range (NR), then it is assumed that accelerator signal line occurs in accelerator failure
Go offline and trigger vehicle and alarm and stop, this signal processing method has following defect：The reliability of signal transacting is low, can not
Identify which is that normally which is faulty and carries out corresponding throttle signal switching in two-way throttle signal,
First, two-way throttle signal ratio is in normal range (NR), it is possible to which wherein throttle channel is normal, another all the way
Throttle channel breaks down all the way, then normal throttle signal all the way can be selected as useful signal, without should be direct
Judge accelerator failure and alarm.
Second, two-way throttle signal ratio in normal range (NR), can not conclude that accelerator is normal, such as in two-way throttle
Passage is deposited in the case of a fault, it is possible to which its ratio is on the contrary in normal range (NR).
In addition, in existing throttle signal processing method, the validity of throttle signal can not ensure, it may appear that throttle is opened
The erroneous judgement of degree, because the determination for gas pedal aperture at present is all based on the amplitude of acquired analog signal.For example, work as
The amplitude of analog signal close to zero aperture theoretical principle value when, that is, judge gas pedal aperture be zero aperture, if the road believe
Number line goes offline, and when user steps on the gas, then analog signal of its output is still close to the theoretical principle value of zero aperture, therefore system meeting
Judge now and pedal aperture be zero aperture, this is substantially incorrect.
The content of the invention
The technical problem to be solved in the present invention is, for the above-mentioned signal transacting of prior art reliability it is low, can not
Identify respectively two-way throttle signal whether failure and the defects of carry out corresponding throttle signal switching, there is provided a kind of automobile double throttle
Pedal signal processing method and system.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of automobile double accelerator pedal signal processing
Method, methods described include：
(s), on automobile controller after electricity, Fisrt fault mark and the second Reflector are reset；
(a) first via throttle signal and the second road binders gate signal, are sampled；
(b), judge the ratio of current first via throttle signal and the second road binders gate signal whether in predetermined ratio scope
Whether interior and first via throttle signal is in the first preset range, if it is, confirming that two-way throttle signal is normal, into step
Suddenly (d), otherwise into step (c)；
If (c), first via throttle signal is not in the first preset range, by Fisrt fault flag set, if
Two road binders gate signals are not in the second preset range, then by the second Reflector set；
(d) first via throttle signal, is responded when Fisrt fault is masked as zero, then performs step (a)；In Fisrt fault
The second road binders gate signal is responded when mark is set and the second Reflector is zero, then performs step (a)；In Fisrt fault mark
Refusal respond first via throttle signal and the second road binders gate signal and alarm when will and the second Reflector are set, then hold
Row step (a)；
Wherein, in the step (b), also include when confirming that two-way throttle signal is normal：Judge the Fisrt fault
Whether mark or the second Reflector are set, and make when the Fisrt fault mark or the second Reflector are set
The count value of failure reset counter adds one, when the count value of failure reset counter reaches setting value by Fisrt fault mark
Reset with the second Reflector.
Automobile double accelerator pedal signal processing method of the present invention, wherein, between the step (a) and step (b)
Also include：Step (k) is performed when detecting brake signal, otherwise performs step (b)；
(k), when first via throttle signal exceedes first threshold by Fisrt fault flag set, in the second road binders gate signal
By the second Reflector set during more than Second Threshold, step (d) is then performed；
Automobile double accelerator pedal signal processing method of the present invention, wherein, the step (k) includes following sub-step
Suddenly,
(k1) count value of Fisrt fault counter, is made to add one when first via throttle signal exceedes first threshold, and
By Fisrt fault flag set when the count value of Fisrt fault counter reaches setting value；Then step (k2) is performed；
(k2) count value of the second failure counter, is made to add one when the second road binders gate signal exceedes Second Threshold, and
By the second Reflector set when the count value of second failure counter reaches setting value；And enter step (d).
Automobile double accelerator pedal signal processing method of the present invention, wherein, the first threshold is：Gas pedal is opened
The theoretical minimum value of first via throttle signal adds the value after tolerance when degree is zero aperture；
The Second Threshold is：The theoretical minimum value of the second road binders gate signal is plus fair when gas pedal aperture is zero aperture
Perhaps the value after deviation.
Automobile double accelerator pedal signal processing method of the present invention, wherein, first preset range is：More than oil
The theoretical minimum value of first via throttle signal subtracts the value after tolerance when door pedal aperture is zero aperture, less than gas pedal
The theoretical maximum of first via throttle signal adds the value after tolerance when aperture is full gate；
Second preset range is：The theory of the second road binders gate signal is minimum when more than gas pedal aperture being zero aperture
Value subtracts the value after tolerance, and the theoretical maximum of the second road binders gate signal adds when less than gas pedal aperture being full gate
Value after tolerance.
Automobile double accelerator pedal signal processing method of the present invention, wherein, the predetermined ratio scope is 1.8-
2.2。
The invention also discloses a kind of automobile double accelerator pedal signal processing system, including reseting module, acquisition module,
One judge module, the second judge module, respond module；
Reseting module, after the electricity on automobile controller, Fisrt fault mark and the second Reflector are reset；
Acquisition module, for using preset interval time as periodic sampling first via throttle signal and the second road binders gate signal；
First judge module, for judge current first via throttle signal and the second road binders gate signal ratio whether
In the range of predetermined ratio and whether first via throttle signal is in the first preset range, if it is, confirming two-way throttle signal
It is normal, request process instruction is sent to respond module；Otherwise accident analysis is sent to instruct to the second judge module；
Second judge module, for receive accident analysis instruction when, judge successively first via throttle signal whether
In first preset range, the second road binders gate signal whether in the second preset range, if first via throttle signal is not first
In preset range, then by Fisrt fault flag set, if the second road binders gate signal not in the second preset range, by second
Reflector set；And request process instruction is sent to respond module；
Respond module, for after the request process instruction is received, first to be responded when Fisrt fault is masked as zero
Road binders gate signal, the second road binders gate signal is responded when Fisrt fault mark is set and the second Reflector is zero, first
Refusal respond first via throttle signal and the second road binders gate signal and alarmed when Reflector and the second Reflector are set；
Also include：3rd judge module, first judge module refer in the triggering for receiving the transmission of the 3rd judge module
Started working when making；
3rd judge module, for sending triggering command when being not detected by brake signal to the first judge module；And
When detecting brake signal, judge whether first via throttle signal exceed first threshold, the second road binders gate signal successively
More than Second Threshold, and when first via throttle signal exceedes first threshold by Fisrt fault flag set, in the second road binders door
By the second Reflector set when signal exceedes Second Threshold, and send accident analysis and instruct to respond module；
First judge module includes the first timing unit, and the 3rd judge module includes the second timing unit and the
Three timing units；
First timing unit, for before the first judge module sends accident analysis instruction, judging the Fisrt fault
Whether mark or the second Reflector are set, and when Fisrt fault mark or the second Reflector are set, make event
The count value of barrier reset count device adds one, and when the count value of failure reset counter reaches setting value, by Fisrt fault mark
Will and the second Reflector are reset；
Second timing unit, for when the 3rd judge module judges that first via throttle signal exceedes first threshold, making
The count value of Fisrt fault counter adds one, and when the count value of Fisrt fault counter reaches preset setting values by the first event
Hinder flag set；
3rd timing unit, for when the 3rd judge module judges that the second road binders gate signal exceedes Second Threshold, making
The count value of second failure counter adds one, and when the count value of the second failure counter reaches setting value, by the second failure
Flag set.
Implement the automobile double accelerator pedal signal processing method and system of the present invention, have the advantages that：
The present invention first via throttle signal and the second road binders gate signal ratio meet as defined in the case of, it is further right
Whether each road binders gate signal is judged in preset range, only meets just to confirm the road in the case of ratio and amplitude simultaneously
Throttle signal is normal, and reliability is higher, is not direct judgement throttle in addition, when the ratio of two-way throttle signal is unqualified
Signal fault, but fault detect is carried out to every road binders gate signal respectively, selection does not have faulty throttle signal to be all the way used as and had
Effect signal is responded, and can carry out corresponding throttle signal switching, reliability further improves；
Further, present invention also adds the verification step to brake signal, because brake signal can be really anti-
Zero aperture of gas pedal is answered, and then the anti-validity for pushing away throttle signal now of state of zero aperture can be utilized, is contributed to
Detection is out of order as early as possible.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is the flow chart of the first embodiment of automobile double accelerator pedal signal processing method of the present invention；
Fig. 2 is the flow chart of the second embodiment of automobile double accelerator pedal signal processing method of the present invention；
Fig. 3 is the system block diagram of the first embodiment of automobile double accelerator pedal signal processing system of the present invention；
Fig. 4 is the system block diagram of the second embodiment of automobile double accelerator pedal signal processing system of the present invention.
Embodiment
In order to which technical characteristic, purpose and the effect of the present invention is more clearly understood, now compares accompanying drawing and describe in detail
The embodiment of the present invention.
It is the flow chart of the first embodiment of automobile double accelerator pedal signal processing method of the present invention with reference to figure 1, first is real
Apply in example, methods described includes：
On automobile controller after electricity, Fisrt fault mark and the second Reflector are reset, using preset interval time as
Interval performs following steps repeatedly：
S1, sampling first via throttle signal and the second road binders gate signal, into step S200；
In Fig. 1, AI1 and AI2 represent first via throttle signal and the second road binders gate signal collected in real time respectively.Its
In, first via throttle signal and the second road binders gate signal are the analog voltage obtained using accelerator pedal stroke sensor, normally
In the case of, the ratio of two-way throttle signal is some predetermined ratio, and the amplitude of two-way throttle signal respectively with gas pedal
Aperture is directly proportional, and predetermined ratio is 2 in theory.
Wherein, when not stepping on the gas, the aperture of gas pedal is zero aperture, and first via throttle signal is minimum, the first via
Throttle signal theoretical minimum value is designated as AI1_MIN, and the actual value gathered during zero aperture is deposited compared with theoretical minimum value AI1_MIN
In certain tolerance, similarly, theoretical minimum value of the second road binders gate signal in zero aperture is designated as AI2_MIN.By oil
Door step on maximum when, the aperture of gas pedal be full gate, and first via throttle signal is maximum, and the theory of first via throttle signal is most
Big value is designated as AI1_MAX, and similarly, theoretical maximum of the second road binders gate signal in full gate is designated as AI2_MAX.The present embodiment
In, AI1_MIN, AI1_MAX are respectively：0.4V, 4V, AI2_MIN, AI2_MAX are respectively：0.2V、2V.
The present invention represents first via throttle signal and the second road binders gate signal using Fisrt fault mark, the second Reflector
With the presence or absence of failure, when Fisrt fault mark, the second Reflector are set, there is failure, Fisrt fault mark, second in representative
When Reflector is zero, failure is not present in representative.
Whether S200, the ratio for judging first via throttle signal and the second road binders gate signal are predetermined ratio scope and first
Whether road binders gate signal is in the first preset range, if it is, confirming that accelerator is normal, two-way throttle signal is normal, enters
Enter step S21, otherwise, into step S31；
In view of error, predetermined ratio is typically in the range of predetermined ratio, and predetermined ratio scope is 1.8- in the present invention
2.2。
First preset range is：The theoretical minimum value of first via throttle signal subtracts when more than gas pedal aperture being zero aperture
The theoretical maximum of first via throttle signal is plus allowing when the value gone after tolerance less than gas pedal aperture is full gate
Value after deviation, it is allowed to which deviation is determined by tolerance coefficient * theoretical values, in the present embodiment, it is allowed to deviation factor 0.2, zero
Tolerance during aperture is 0.2*AI1_MIN, and tolerance during full gate is：0.2*AI1_MAX, therefore first is default
Scope is：0.8AI1_MIN to 1.2AI1_MAX.
S21, judge whether Fisrt fault mark or the second Reflector are set, if Fisrt fault mark or
Two Reflectors are set, then into step S22, are otherwise directly entered step S41；
S22, failure reset counter T0 count value is added one, and failure judgement reset count device T0 count value whether
Reach setting value Tmax, if failure reset counter T0 count value reaches setting value Tmax, judge Fisrt fault mark
Or second failure of Reflector when being set be illusion failure, Fisrt fault mark and the second Reflector are reset, entered
Enter step S41, if failure reset counter T0 count value is not up to setting value Tmax, be directly entered step S41；
Signal wire it is possible that loose contact and cause obtain first via throttle signal and the second road binders gate signal be
Abnormal signal, although the time that abnormal signal caused by loose contact occurs is of short duration, because whole information process is
Quite fast, information processing constantly performs the process of a wheel S1-S41, and the preset interval time for often taking turns consuming is about 2ms, so
Of short duration abnormal signal still can cause the erroneous judgement of fault detect.
Step S21 and S22 purpose are that the failure brought in order to avoid loose contact judges problem by accident.Because step S21,
S22 belongs in step S200 the judgement path judged where when accelerator is normal, and throttle signal has event in step S22
Barrier, above-mentioned it has been mentioned that often wheel signal transacting is quick, the counting in step S22 really reaches the purpose of timing, if step
Counting in rapid S22 reaches Tmax, then it represents that and the accelerator all judged in the 2*Tmax milliseconds after certain " failure " is normal,
So it is considered that " failure " before this is not real failure, but illusion caused by loose contact, thus by first therefore
Barrier mark and the second Reflector are reset, and remove failure logging caused by loose contact.
It is worth noting that, the present invention is not using wait timing, but while (timing) is counted, keep normal
Repeatedly perform signal transacting process, guarantee timely respond throttle signal.
S31, first via throttle signal is judged whether in the first preset range, if first via throttle signal is pre- first
If in scope, being then directly entered step S32, if first via throttle signal judges the first via not in the first preset range
Throttle signal failure, by Fisrt fault flag set, step S32 is entered back into,
S32, the second road binders gate signal is judged not in the second preset range, if the second road binders gate signal is default second
In the range of, then step S41 is directly entered, if the second road binders gate signal judges the second road binders not in the second preset range
Gate signal failure, by the second Reflector set, step S41 is entered back into, the determination of the second preset range is with reference in step S200
The determination of first preset range, the second preset range are：0.8AI2_MIN to 1.2AI2_MAX；
In the case where the ratio of two-way throttle signal is against regulation, the present invention is not direct judgement accelerator event
Barrier, but enter step S31, S32, fault verification is carried out to each road binders gate signal respectively, only in the road binders gate signal
Just assert that the road road binders gate signal is strictly faulty when not in reasonable amplitude range, and in the road binders gate signal in reasonable width
Judge that it is normal when in the range of value, step S31, S32 judges which road binders gate signal is normal, where road has failure, so as to follow-up
Corresponding throttle signal switching is carried out in step S41.
S41, judge whether Fisrt fault mark is set, if Fisrt fault is masked as zero, respond first via throttle
Signal, the signal transacting that S1 starts next round is gone to step, if Fisrt fault mark is set, into step S42；
S42, judge whether the second Reflector is set, if the second Reflector is zero, respond the second road binders door
Signal, and the signal transacting that S1 starts next round is gone to step, if the second Reflector is set, the road binders of refusal respond first
Gate signal and the second road binders gate signal are simultaneously alarmed, and go to step the signal transacting that S1 starts next round.Preferably, two-way is being judged
When throttle signal breaks down, failure reset can also be performed according to the setting of user.
The present invention first via throttle signal and the second road binders gate signal ratio meet as defined in the case of, it is further right
Whether each road binders gate signal is judged in preset range, only meets just to confirm the road in the case of ratio and amplitude simultaneously
Throttle signal is normal, and reliability is higher；And the present invention is using first via throttle signal as preferred signal, the second road binders gate signal
Alternately signal, as long as identifying that first via throttle signal is normal, then step S41 is directly in response to first via throttle signal, only
Have when first via throttle signal breaks down, step S42 just responds normal second road binders gate signal, and therefore, the present invention can
To be responded using normal throttle signal all the way, accelerator failure will not be directly judged, it is only equal in two-way throttle signal
It can just be alarmed during failure, reliability is high.
It is the flow chart of the second embodiment of automobile double accelerator pedal signal processing method of the present invention with reference to figure 2.
The difference of second embodiment and first embodiment is：After electricity performs step S1 on automobile controller, hold first
Row step S100：
S100, judge whether to detect brake signal, if detecting brake signal, into step S51, if do not had
Brake signal is detected, just performs above-mentioned step 200；
S51, judge whether first via throttle signal exceedes first threshold, if first via throttle signal is more than the first threshold
Value, then into step S52, if first via throttle signal not less than first threshold, into step S53；
S52, Fisrt fault counter T1 count value is added one, and judge Fisrt fault counter T1 count value whether
Reach setting value Tmax, if Fisrt fault counter T1 count value reaches setting value Tmax, Fisrt fault mark is put
Position, into step S53, if Fisrt fault counter T1 count value is not up to setting value Tmax, is directly entered step S53；
S53, judge whether the second road binders gate signal exceedes Second Threshold, if the second road binders gate signal is more than the second threshold
Value, then into step S54, if the second road binders gate signal not less than Second Threshold, into step S41；
S54, the second failure counter T2 count value is added one, and judge the second failure counter T2 count value whether
Reach setting value Tmax, if the second failure counter T2 count value reaches setting value Tmax, the second Reflector is put
Position, into step S41, if the second failure counter T2 count value is not up to setting value Tmax, is directly entered step S41；
Wherein, the first threshold in step S51 is：The theory of first via throttle signal when gas pedal aperture is zero aperture
Minimum value adds the value after tolerance；Second Threshold in step S53 is：Second road binders when gas pedal aperture is zero aperture
The theoretical minimum value of gate signal adds the value after tolerance.
Because it is above-mentioned it has been mentioned that：When being judged using the amplitude of analog signal, the validity of throttle signal can not protect
Card.Therefore, brake signal is determined whether by step S100 first, such as before signal transacting is carried out in second embodiment
Fruit has brake signal, then can be concluded that and do not step on the gas now, and gas pedal is zero aperture, and throttle signal now should be most
Small value, it is this to judge than judging that the aperture of gas pedal zero is reliable by signal amplitude.Therefore, step S51-S54 is throttle
Whether pedal is the situation of zero aperture, be minimum value by the throttle signal detected now, you can judge that the road binders gate signal is
It is no normal.In view of tolerance, first threshold is 1.1*AI1_MIN, Second Threshold 1.1*AI2_MIN in the present invention.
Further, with reference to the above-mentioned explanation to step S22, it is contemplated that signal wire there may be loose contact and cause vacation
Then it is not directly by Fisrt fault mark in step s 51 if it is judged that first via throttle signal breaks down as failure
Set, but counted through step S52 to realize timing, if count down to up to certain setting value Tmax, i.e. 2*Tmax milliseconds
Time in obtain first via throttle signal be all judged as failure being present, then do not meet loose contact abnormal signal it is of short duration
The characteristics of property, it is believed that first via throttle signal is implicitly present in failure and by corresponding Fisrt fault flag set, the second road binders door
The processing procedure of signal similarly, repeats no more with the processing procedure of first via throttle signal.
It is the system block diagram of the first embodiment of automobile double accelerator pedal signal processing system of the present invention with reference to figure 3；
In first embodiment, automobile double accelerator pedal signal processing system includes reseting module 100, acquisition module 200, the
One judge module 300, the second judge module 400, respond module 500；
Reseting module 100, after the electricity on automobile controller, Fisrt fault mark and the second Reflector are reset；
Acquisition module 200, for believing by periodic sampling first via throttle signal and the second road binders door of preset interval time
Number；
First judge module 300, for judging that the ratio of current first via throttle signal and the second road binders gate signal is
It is no in the range of predetermined ratio and whether first via throttle signal in the first preset range, if first via throttle signal and
The ratio of two road binders gate signals is in the range of predetermined ratio and first via throttle signal is in the first preset range, then confirms two-way
Throttle signal is normal, sends request process instruction to respond module 500；Otherwise send accident analysis and instruct to second and judge mould
Block 400；
Second judge module 400, for when receiving accident analysis instruction, whether judging first via throttle signal successively
In the first preset range, the second road binders gate signal whether in the second preset range, if first via throttle signal is not
In one preset range, then by Fisrt fault flag set, if the second road binders gate signal not in the second preset range, by
Two Reflector set；And request process instruction is sent to respond module 500；
Respond module 500, for after the request process instruction is received, the to be responded when Fisrt fault is masked as zero
Throttle signal all the way, the second road binders gate signal is responded when Fisrt fault mark is set and the second Reflector is zero,
Refusal respond first via throttle signal and the second road binders gate signal and reported when one Reflector and the second Reflector are set
It is alert.
It is the system block diagram of the second embodiment of automobile double accelerator pedal signal processing system of the present invention with reference to figure 4
Also include in second embodiment：3rd judge module 203, first judge module 300 are sentenced receiving the 3rd
Started working during the triggering command that disconnected module 203 is sent；
3rd judge module 203, for sending triggering command when being not detected by brake signal to the first judge module
(300)；And when detecting brake signal, judge whether first via throttle signal exceedes first threshold, the second road binders successively
Whether gate signal exceedes Second Threshold, and when first via throttle signal exceedes first threshold by Fisrt fault flag set,
By the second Reflector set when second road binders gate signal exceedes Second Threshold, and send accident analysis and instruct to respond module
500。
Preferably, first judge module 300 includes the first timing unit, and the 3rd judge module 203 includes the
Two timing units and the 3rd timing unit；
First timing unit, for before the first judge module 300 sends accident analysis instruction, judging first event
Whether barrier mark or the second Reflector are set, and when Fisrt fault mark or the second Reflector are set, make
The count value of failure reset counter adds one, and when the count value of failure reset counter reaches setting value, by Fisrt fault
Mark and the second Reflector, which are set, to reset；
Second timing unit, for when the 3rd judge module 203 judges that first via throttle signal exceedes first threshold,
The count value of Fisrt fault counter is set to add one, and when the count value of Fisrt fault counter reaches preset setting values by first
Reflector set；
3rd timing unit, for when the 3rd judge module 203 judges that the second road binders gate signal exceedes Second Threshold,
The count value of the second failure counter is set to add one, and when the count value of the second failure counter reaches setting value, by the second event
Hinder flag set.
In summary, except judging the ratio of first via throttle signal and the second road binders gate signal in the present invention,
Failure is also made to determine whether respectively with regard to each road binders gate signal respectively, reliability is higher, in addition, in the ratio of two-way throttle signal
When being worth unqualified, fault detect is carried out to every road binders gate signal respectively, finally chooses and does not have faulty throttle signal conduct all the way
Useful signal is responded, and can carry out corresponding throttle signal switching, and reliability further improves.Further, the present invention is gone back
The verification step to brake signal is added, because brake signal can really react zero aperture of gas pedal, Jin Erke
Using the anti-validity for pushing away throttle signal now of the state of zero aperture, to help to detect as early as possible and be out of order.
Embodiments of the invention are described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned specific
Embodiment, above-mentioned embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under the enlightenment of the present invention, in the case of present inventive concept and scope of the claimed protection is not departed from, it can also make a lot
Form, these are belonged within the protection of the present invention.
Claims (7)
1. a kind of automobile double accelerator pedal signal processing method, it is characterised in that methods described includes：
(s), on automobile controller after electricity, Fisrt fault mark and the second Reflector are reset；
(a) first via throttle signal and the second road binders gate signal, are sampled；
(b), judge current first via throttle signal and the second road binders gate signal ratio whether in the range of predetermined ratio and
Whether first via throttle signal is in the first preset range, if it is, confirming that two-way throttle signal is normal, into step
(d), otherwise into step (c)；
If (c), first via throttle signal is not in the first preset range, by Fisrt fault flag set, if the second tunnel
Throttle signal is not in the second preset range, then by the second Reflector set；
(d) first via throttle signal, is responded when Fisrt fault is masked as zero, then performs step (a)；In Fisrt fault mark
It is set and responds the second road binders gate signal when the second Reflector is zero, then performs step (a)；In Fisrt fault mark and
Refusal respond first via throttle signal and the second road binders gate signal and alarmed when second Reflector is set, then perform step
Suddenly (a)；
In the step (b), also include when confirming that two-way throttle signal is normal：Judge the Fisrt fault mark or
Whether two Reflectors are set, and make failure reset meter when the Fisrt fault mark or the second Reflector are set
The count value of number device adds one, when the count value of failure reset counter reaches setting value by Fisrt fault mark and the second failure
Flag clear.
2. automobile double accelerator pedal signal processing method according to claim 1, it is characterised in that the step (a) and
Also include between step (b)：Step (k) is performed when detecting brake signal, otherwise performs step (b)；
(k), Fisrt fault flag set is exceeded in the second road binders gate signal when first via throttle signal exceedes first threshold
By the second Reflector set during Second Threshold, step (d) is then performed.
3. automobile double accelerator pedal signal processing method according to claim 2, it is characterised in that step (k) bag
Following sub-step is included,
(k1), the count value of Fisrt fault counter is made to add one when first via throttle signal exceedes first threshold, and first
By Fisrt fault flag set when the count value of failure counter reaches setting value；Then step (k2) is performed；
(k2), the count value of the second failure counter is made to add one when the second road binders gate signal exceedes Second Threshold, and second
By the second Reflector set when the count value of failure counter reaches setting value；And enter step (d).
4. automobile double accelerator pedal signal processing method according to claim 3, it is characterised in that
The first threshold is：The theoretical minimum value of first via throttle signal is inclined plus allowing when gas pedal aperture is zero aperture
Value after difference；
The Second Threshold is：The theoretical minimum value of the second road binders gate signal is inclined plus allowing when gas pedal aperture is zero aperture
Value after difference.
5. automobile double accelerator pedal signal processing method according to claim 1, it is characterised in that
First preset range is：The theoretical minimum value of first via throttle signal subtracts when more than gas pedal aperture being zero aperture
The theoretical maximum of first via throttle signal is plus allowing when the value gone after tolerance less than gas pedal aperture is full gate
Value after deviation；
Second preset range is：The theoretical minimum value of the second road binders gate signal subtracts when more than gas pedal aperture being zero aperture
The theoretical maximum of the second road binders gate signal is plus allowing when the value gone after tolerance less than gas pedal aperture is full gate
Value after deviation.
6. automobile double accelerator pedal signal processing method according to claim 1, it is characterised in that the predetermined ratio model
Enclose for 1.8-2.2.
7. a kind of automobile double accelerator pedal signal processing system, it is characterised in that including reseting module (100), acquisition module
(200), the first judge module (300), the second judge module (400), respond module (500)；
Reseting module (100), after the electricity on automobile controller, Fisrt fault mark and the second Reflector are reset；
Acquisition module (200), for using preset interval time as periodic sampling first via throttle signal and the second road binders gate signal；
First judge module (300), for judge current first via throttle signal and the second road binders gate signal ratio whether
In the range of predetermined ratio and whether first via throttle signal is in the first preset range, if it is, confirming two-way throttle letter
It is number normal, request process instruction is sent to respond module (500)；Otherwise accident analysis is sent to instruct to the second judge module
(400)；
Second judge module (400), for receive accident analysis instruction when, judge successively first via throttle signal whether
In first preset range, the second road binders gate signal whether in the second preset range, if first via throttle signal is not first
In preset range, then by Fisrt fault flag set, if the second road binders gate signal not in the second preset range, by second
Reflector set；And request process instruction is sent to respond module (500)；
Respond module (500), for after the request process instruction is received, first to be responded when Fisrt fault is masked as zero
Road binders gate signal, the second road binders gate signal is responded when Fisrt fault mark is set and the second Reflector is zero, first
Refusal respond first via throttle signal and the second road binders gate signal and alarmed when Reflector and the second Reflector are set；
Also include：3rd judge module (203), first judge module (300) are receiving the 3rd judge module (203) hair
Started working during the triggering command sent；
3rd judge module (203), for sending triggering command when being not detected by brake signal to the first judge module
(300)；And when detecting brake signal, judge whether first via throttle signal exceedes first threshold, the second road binders successively
Whether gate signal exceedes Second Threshold, and when first via throttle signal exceedes first threshold by Fisrt fault flag set,
By the second Reflector set when second road binders gate signal exceedes Second Threshold, and send accident analysis and instruct to respond module
(500)；
First judge module (300) includes the first timing unit, and the 3rd judge module (203) includes the second timing list
Member and the 3rd timing unit；
First timing unit, for before the first judge module (300) sends accident analysis instruction, judging the Fisrt fault
Whether mark or the second Reflector are set, and when Fisrt fault mark or the second Reflector are set, make event
The count value of barrier reset count device adds one, and when the count value of failure reset counter reaches setting value, by Fisrt fault mark
Will and the second Reflector are reset；
Second timing unit, for when the 3rd judge module (203) judges that first via throttle signal exceedes first threshold, making
The count value of Fisrt fault counter adds one, and when the count value of Fisrt fault counter reaches preset setting values by the first event
Hinder flag set；
3rd timing unit, for when the 3rd judge module (203) judges that the second road binders gate signal exceedes Second Threshold, making
The count value of second failure counter adds one, and when the count value of the second failure counter reaches setting value, by the second failure
Flag set.
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| CN201410736309.7A CN104527648B (en) | 2014-12-05 | 2014-12-05 | Automobile double accelerator pedal signal processing method and system |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104890531A (en) * | 2015-06-07 | 2015-09-09 | 深圳市沃特玛电池有限公司 | Double-channel accelerator pedal signal control method |
| CN105774593A (en) * | 2016-03-24 | 2016-07-20 | 成都雅骏新能源汽车科技股份有限公司 | New energy electric vehicle two-circuit pedal control method |
| CN106364365B (en) * | 2016-09-12 | 2018-10-16 | 北京新能源汽车股份有限公司 | Method and device for processing double-path accelerator pedal signals |
| CN106950901A (en) * | 2017-04-24 | 2017-07-14 | 深圳市智慧车联科技有限公司 | A kind of method for improving throttle position switch reliability |
| CN107918377B (en) * | 2017-10-20 | 2023-04-07 | 开沃新能源汽车集团有限公司 | Pedal fault diagnosis method based on vehicle control unit |
| CN109164312B (en) * | 2018-07-25 | 2021-07-16 | 江苏敏安电动汽车有限公司 | Electric automobile accelerator pedal checking algorithm |
| CN108944441A (en) * | 2018-07-27 | 2018-12-07 | 北京新能源汽车股份有限公司 | Control method and device of accelerator pedal, vehicle and computing equipment |
| CN109849938A (en) * | 2018-12-12 | 2019-06-07 | 北京长城华冠汽车科技股份有限公司 | The accelerator pedal signal processing system and its control method of vehicle |
| CN110406525B (en) * | 2019-06-28 | 2021-07-20 | 潍柴动力股份有限公司 | Control method and device for failure of accelerator pedal |
| CN112428982B (en) * | 2019-08-07 | 2022-02-01 | 纬湃科技投资(中国)有限公司 | Signal processing method for accelerator pedal of hybrid electric vehicle |
| CN111007844A (en) * | 2020-01-10 | 2020-04-14 | 长春师范大学 | New energy automobile controller fault determination method |
| CN114412653A (en) * | 2021-12-08 | 2022-04-29 | 中联重科股份有限公司 | Control method for engine of engineering equipment, processor and engineering equipment |
| CN118362877B (en) * | 2024-06-17 | 2024-09-06 | 惠州市乐亿通科技股份有限公司 | Relay electrical life test system and method |
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