CN104842793A - Driving-torque display method and system thereof for automobiles - Google Patents
Driving-torque display method and system thereof for automobiles Download PDFInfo
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- CN104842793A CN104842793A CN201410790901.5A CN201410790901A CN104842793A CN 104842793 A CN104842793 A CN 104842793A CN 201410790901 A CN201410790901 A CN 201410790901A CN 104842793 A CN104842793 A CN 104842793A
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Abstract
The invention discloses a driving-torque display method and system thereof for automobiles. The driving-torque display method comprises the following steps: obtaining relevant engine signals output by the control unit of an engine; obtaining relevant gear signals output by the control unit of a gearbox; obtaining relevant all-wheel driving signals output by a four-wheel driving control unit; calculating and displaying the driving torque of front and rear wheels. According to the driving-torque display method disclosed by the invention, the driving torque of the front and rear wheels can be displayed on the basis of existing hardware, the developing cost of products is saved, and favorable conditions are provided for the communication between a driver and an automobile.
Description
Technical field
The present invention relates to a kind of display method and device, particularly about a kind of Automobile drive moment of torsion display method and system thereof.
Background technology
A11wheel drive refers to that the master layout pattern of automobile be whole wheel is all drive wheel, and a11wheel drive can by travelling on different and all before and after being distributed in by different proportion by the engine output torque wheels of pavement state, to improve the driveability of automobile.All-wheel-drive system adopts ripe control technology, carries out continual monitoring to vehicle condition, by the drive wheel distance of each wheel of active adjustment, to obtain best stability of automobile, road-holding property and fuel economy.All-wheel-drive system, to the pro-active intervention of driving torque, adds chaufeur and vehicle torsional moment is distributed to the difficulty understood.There is no the technology of Automobile drive moment of torsion being carried out to display in real time at present.
Summary of the invention
The object of the present invention is to provide a kind of one or more Automobile drive moment of torsion display method of overcoming or at least alleviate in the above-mentioned defect of prior art and system thereof.
For achieving the above object, the invention provides a kind of Automobile drive moment of torsion display method, it comprises the following steps: obtain the correlation engine signal that control unit of engine exports; Obtain the relevant gear signal that gear box control unit exports; Obtain the relevant a11wheel drive signal that 4 wheel driven control unit exports; Calculate and show the driving torque of front-wheel and trailing wheel.
Further, described correlation engine signal comprises engine torque value and engine torque penalty values; Described relevant gear signal comprises change speed gear box actual-gear signal; Described relevant a11wheel drive signal comprises actual torque value.
Further, the computing formula of the driving torque of described front-wheel and trailing wheel is:
AWD_N_FLTorque＝AWD_N_FRTorque＝[(①-③)*i
n*i
f*η-⑥*i
P]/2；
AWD_N_RLTorque＝AWD_N_RRTorque＝⑥*iP/2；
Wherein: the driving torque of AWD_N_FLTorque-the near front wheel; The driving torque of AWD_N_FRTorque-off front wheel; The driving torque of AWD_N_RLTorque-left rear wheel; The driving torque of AWD_N_RRTorque-off hind wheel; i
nfor each shelves speed ratio; i
ffor front axle base ratio; i
pfor final drive ratio; η is driving efficiency; 1. be engine torque value; 3. be engine torque penalty values; 6. be actual torque value.
Further, when gear be P shelves or N shelves time, the driving torque of described front-wheel and trailing wheel is shown as 0.
Further, when at least one signal in described correlation engine signal and described relevant a11wheel drive signal is error condition, then alarm is sent.
Further, each described signal obtained via described control unit of engine, described gear box control unit and described 4 wheel driven control unit is all transported to instrument by gateway, carries out the calculating of front-wheel and trailing wheel output torque and show by described instrument.
Due to the correlation engine signal that the present invention exports by obtaining control unit of engine, obtain the relevant gear signal that gear box control unit exports and the relevant a11wheel drive signal obtaining the output of 4 wheel driven control unit, calculate and show the driving torque of front-wheel and trailing wheel, therefore the present invention can on the basis of existing hardware, complete the display of the driving torque of front-wheel and trailing wheel, save product development cost, for the communication between chaufeur and automobile provides advantage.
The present invention also provides a kind of Automobile drive torque display system, and it comprises: control unit of engine, for exporting correlation engine signal; Gear box control unit, for exporting relevant gear signal; 4 wheel driven control unit, for exporting relevant a11wheel drive signal; And instrument, for being received described correlation engine signal, described relevant gear signal and described relevant drive signals by gateway, for calculating and showing the driving torque of front-wheel and trailing wheel.
Further, described control unit of engine is also for exporting the identification result of the state of described correlation engine signal to described instrument, when described correlation engine signal is error condition, described instrument display alarm is pointed out.
Further, described 4 wheel driven control unit is also for exporting the identification result of the state of described relevant a11wheel drive signal to described instrument, when described relevant a11wheel drive signal is error condition, described instrument display alarm is pointed out.
Further, when described correlation engine signal or described relevant a11wheel drive signal are normal condition, described instrument also for identifying current gear, when gear be P shelves or N shelves time, the driving torque of described front-wheel and trailing wheel is shown as 0; When gear be R shelves or D shelves time, show the driving torque of the described front-wheel that calculates and trailing wheel.
Accompanying drawing explanation
Fig. 1 is the principle schematic of Automobile drive torque display system one embodiment provided by the present invention;
Fig. 2 is the schematic flow sheet of Automobile drive moment of torsion display method one embodiment provided by the present invention.
Reference numeral:
| 1 | Control unit of engine | 2 | Gear box control unit |
| 3 | 4 wheel driven control unit | 4 | Gateway |
| 5 | Instrument |
Detailed description of the invention
For making object of the invention process, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the present invention's part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
In describing the invention; it will be appreciated that; term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limiting the scope of the invention.
Fig. 1 display be the principle schematic of Automobile drive torque display system one embodiment provided by the present invention.As shown in Figure 1, the Automobile drive moment of torsion display method that this embodiment provides comprises the following steps:
Obtain the correlation engine signal that control unit of engine 1 exports;
Obtain the relevant gear signal that gear box control unit 2 exports;
Obtain the relevant drive signals that 4 wheel driven control unit 3 exports;
Calculate and show the driving torque of front-wheel and trailing wheel.
Due to the correlation engine signal that the present invention exports by obtaining control unit of engine, obtain the relevant gear signal that gear box control unit exports and the relevant a11wheel drive signal obtaining the output of 4 wheel driven control unit, calculate and show the driving torque of front-wheel and trailing wheel, therefore the present invention can on the basis of existing hardware, complete the display of the driving torque of front-wheel and trailing wheel, save product development cost, for the communication between chaufeur and automobile provides advantage.
In above-mentioned steps, described correlation engine signal comprises engine torque value, engine torque signal state, engine torque penalty values and engine torque penalty values state.Described relevant gear signal comprises change speed gear box actual-gear signal.Described relevant drive signals comprises AWD actual torque value and AWD state of the system.
In above-mentioned steps, the computing formula of the driving torque of front-wheel and trailing wheel is:
AWD_N_FLTorque＝AWD_N_FRTorque＝[(①-③)*i
n*i
f*η-⑥*i
P]/2；
AWD_N_RLTorque＝AWD_N_RRTorque＝⑥*iP/2；
Wherein: AWD_N_FLTorque-the near front wheel output torque; AWD_N_FRTorque-off front wheel output torque; AWD_N_RLTorque-left rear wheel output torque; AWD_N_RRTorque-off hind wheel output torque.I
nfor each shelves speed ratio, this value is by change speed gear box actual-gear signal acquisition.If is front axle base ratio; IP is final drive ratio; η is driving efficiency; If, iP and η constant all for being determined by the design parameters of automobile own.1. be engine torque value; 3. be engine torque penalty values; 6. be actual torque value.
Shown in Fig. 2 is the schematic flow sheet of Automobile drive moment of torsion display method one embodiment provided by the present invention.As shown in Figure 2, after the correlation engine signal of acquisition and relevant drive signals, also need to carry out signal condition detection, when at least one signal in described correlation engine signal and described relevant a11wheel drive signal is error condition, then send alarm.Certainly, the identifying of error condition can be provided by control unit of engine 1 or 4 wheel driven control unit 3, the present invention does not pay close attention to the wrong identification process of above-mentioned signal, and be only, when to provide above-mentioned signal be error condition for control unit of engine 1 or 4 wheel driven control unit 3 time, to be undertaken showing by method provided by the present invention.
In said method, after detecting the state of correlation engine signal and relevant drive signals, also need to distinguish gear.When the gear that relevant gear signal provides be P (Parking) shelves or N (Neutral) shelves time, then the driving torque of front-wheel and trailing wheel is shown as 0.When the gear that relevant gear signal provides be R (Reverse) shelves or D (Drive) shelves time, then perform the step display of the driving torque of front-wheel and trailing wheel.
As shown in Figure 1, particularly, each described signal obtained via control unit of engine 1, gear box control unit 2 and 4 wheel driven control unit 3 is all transported to instrument 5 by gateway 4, is carried out the calculating of front-wheel and trailing wheel output torque by instrument 5 and is shown.Instrument 5 can be the device that automobile has itself, only needs the computing formula of the driving torque of above-mentioned front-wheel and trailing wheel to insert in instrument 5, completes calculating and Presentation Function by instrument 5.
The present invention also provides a kind of Automobile drive torque display system, it comprises control unit of engine 1, gear box control unit 2,4 wheel driven control unit 3 and instrument 5, wherein: control unit of engine 1 is for exporting correlation engine signal, and described correlation engine signal comprises engine torque value, engine torque signal state, engine torque penalty values and engine torque penalty values state.Gear box control unit 2 is for exporting relevant gear signal, and described relevant gear signal comprises change speed gear box actual-gear signal.4 wheel driven control unit 3 is for exporting relevant drive signals, and described relevant drive signals comprises AWD actual torque value and AWD state of the system.Instrument 5 receives described correlation engine signal, described relevant gear signal and described relevant drive signals by gateway 4, for calculating and showing the driving torque of front-wheel and trailing wheel.
In above-mentioned steps, the computing formula of the driving torque of front-wheel and trailing wheel is:
AWD_N_FLTorque＝AWD_N_FRTorque＝[(①-③)*i
n*i
f*η-⑥*i
P]/2
AWD_N_RLTorque＝AWD_N_RRTorque＝⑥*iP/2
Wherein: AWD_N_FLTorque-the near front wheel output torque; AWD_N_FRTorque-off front wheel output torque; AWD_N_RLTorque-left rear wheel output torque; AWD_N_RRTorque-off hind wheel output torque.I
nfor each shelves speed ratio, this value is by change speed gear box actual-gear signal acquisition.I
ffor front axle base ratio; i
pfor final drive ratio; η is driving efficiency; i
f, i
pwith the constant of η all for being determined by model or the accessory model of automobile itself.1. be engine torque value; 3. be engine torque penalty values; 6. be actual torque value.
In above-described embodiment, control unit of engine 1 is also for exporting the identification result of the state of described correlation engine signal to instrument 5, when described correlation engine signal is error condition, instrument 5 display alarm is pointed out.
In the various embodiments described above, 4 wheel driven control unit 3 is also for exporting the identification result of the state of described relevant a11wheel drive signal to instrument 5, when described relevant a11wheel drive signal is error condition, instrument 5 display alarm is pointed out.
In the various embodiments described above, when described correlation engine signal or described relevant a11wheel drive signal are normal condition, instrument 5 also for identifying current gear, when gear be P shelves or N shelves time, the driving torque of front-wheel and trailing wheel is shown as 0; When gear be R shelves or D shelves time, show the driving torque of the front-wheel that calculates and trailing wheel.
Certainly, in order to directly perceived and be easy to identification, instrument 5 can also be shown by the mode of material object.Such as: on the display interface of instrument 5, show two front-wheels and two trailing wheels, some arrows are set up in the below of each wheel, if the output area of single wheel driving torque is 0 ~ 1500Nm, so below each wheel, illustrate 5 arrows be sequentially connected in series, each arrow represents 300Nm, when 5 arrows that certain wheel is corresponding all occur time, illustrate that the driving torque of this wheel is 1500Nm; When corresponding only 4 the arrows appearance of individual wheel time, represent that the driving torque of this wheel is 1200Nm, the rest may be inferred.
In sum, display method provided by the present invention and system, when not increasing system cost, provide a kind of brand-new Automobile drive moment of torsion and carry out real-time display technology, for the communication between chaufeur and automobile provides advantage.
Finally it is to be noted: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit.Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. an Automobile drive moment of torsion display method, is characterized in that, comprises the following steps:
Obtain the correlation engine signal that control unit of engine exports;
Obtain the relevant gear signal that gear box control unit exports;
Obtain the relevant a11wheel drive signal that 4 wheel driven control unit exports;
Calculate and show the driving torque of front-wheel and trailing wheel.
2. Automobile drive moment of torsion display method as claimed in claim 1, is characterized in that,
Described correlation engine signal comprises engine torque value and engine torque penalty values;
Described relevant gear signal comprises change speed gear box actual-gear signal;
Described relevant a11wheel drive signal comprises actual torque value.
3. Automobile drive moment of torsion display method as claimed in claim 2, is characterized in that,
The computing formula of the driving torque of described front-wheel and trailing wheel is:
AWD_N_FLTorque＝AWD_N_FRTorque＝[(①-③)*i
n*i
f*η-⑥*i
P]/2；
AWD_N_RLTorque＝AWD_N_RRTorque＝⑥*iP/2；
Wherein: the driving torque of AWD_N_FLTorque-the near front wheel; The driving torque of AWD_N_FRTorque-off front wheel; The driving torque of AWD_N_RLTorque-left rear wheel; The driving torque of AWD_N_RRTorque-off hind wheel; i
nfor each shelves speed ratio; i
ffor front axle base ratio; i
pfor final drive ratio; η is driving efficiency; 1. be engine torque value; 3. be engine torque penalty values; 6. be actual torque value.
4. Automobile drive moment of torsion display method as claimed in claim 1, is characterized in that,
When gear be P shelves or N shelves time, the driving torque of described front-wheel and trailing wheel is shown as 0.
5. Automobile drive moment of torsion display method as claimed in claim 1, is characterized in that,
When at least one signal in described correlation engine signal and described relevant a11wheel drive signal is error condition, then send alarm.
6. Automobile drive moment of torsion display method as claimed in claim 1, is characterized in that,
The each described signal obtained via described control unit of engine, described gear box control unit and described 4 wheel driven control unit is all transported to instrument by gateway, carries out the calculating of front-wheel and trailing wheel output torque and show by described instrument.
7. an Automobile drive torque display system, is characterized in that, comprising:
Control unit of engine, for exporting correlation engine signal;
Gear box control unit, for exporting relevant gear signal;
4 wheel driven control unit, for exporting relevant a11wheel drive signal; And
Instrument, for being received described correlation engine signal, described relevant gear signal and described relevant drive signals by gateway, for calculating and showing the driving torque of front-wheel and trailing wheel.
8. Automobile drive torque display system as claimed in claim 7, it is characterized in that, described control unit of engine is also for exporting the identification result of the state of described correlation engine signal to described instrument, when described correlation engine signal is error condition, described instrument display alarm is pointed out.
9. Automobile drive torque display system as claimed in claim 7 or 8, it is characterized in that, described 4 wheel driven control unit is also for exporting the identification result of the state of described relevant a11wheel drive signal to described instrument, when described relevant a11wheel drive signal is error condition, described instrument display alarm prompting.
10. Automobile drive torque display system as claimed in claim 9, it is characterized in that, when described correlation engine signal or described relevant a11wheel drive signal are normal condition, described instrument is also for identifying current gear, when gear be P shelves or N shelves time, the driving torque of described front-wheel and trailing wheel is shown as 0; When gear be R shelves or D shelves time, show the driving torque of the described front-wheel that calculates and trailing wheel.
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| CN201410790901.5A CN104842793A (en) | 2014-12-18 | 2014-12-18 | Driving-torque display method and system thereof for automobiles |
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|---|---|---|---|
| CN201410790901.5A CN104842793A (en) | 2014-12-18 | 2014-12-18 | Driving-torque display method and system thereof for automobiles |
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Cited By (2)
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| CN113928117A (en) * | 2021-03-25 | 2022-01-14 | 长城汽车股份有限公司 | Method and system for displaying torque of front axle and rear axle of four-wheel drive vehicle |
| CN115122932A (en) * | 2022-07-15 | 2022-09-30 | 奇瑞汽车股份有限公司 | Driving energy display method and device for four-wheel drive vehicle, vehicle and storage medium |
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Application publication date: 20150819 |