CN103879407A

CN103879407A - Method for energy management of vehicle

Info

Publication number: CN103879407A
Application number: CN201310700910.6A
Authority: CN
Inventors: T.胡贝尔; J.屈尔
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2012-12-20
Filing date: 2013-12-19
Publication date: 2014-06-25
Also published as: DE102012223964A1; KR20140080443A

Abstract

The present invention relates to a method for identifying operation with increased power on an internal combustion engine (2). The method comprises the steps of: measuring speed (84) of fresh air current and/or exhaust current (72,64) in the internal combustion engine (2); comparing the measured speed (84) with a rated speed (98); and when the comparing result deviates from a preset condition, the operation with increased power is identified.

Description

Be used for the method for the energy management of vehicle

Technical field

The present invention relates generally to vehicle, especially there is the vehicle of driving engine.In addition the present invention relates to, the method for the energy management of the vehicle for travelling with certain speed on road.

Background technology

By the known one of document DE 10 2,006 054 327 A1 be used for the gaining method of use (Schwungnutzung) self-propelled vehicle.In the scope of the method, actual speed based on vehicle and the command speed that needs to be reached along the travel direction of vehicle are determined sliding path (Ausrollweg), utilize described in described sliding path vehicle in the situation that there is no fuel oil consumption and there is no brake regulation, in predetermined speed band (Geschwindigkeitskorridor), to slide a segment distance from actual speed and arrive command speed.This system is also referred to as and slides auxiliary device.

Summary of the invention

According to the invention provides the method for the energy management for the vehicle that travels with certain speed according to claim 1 and according to device, computer program, electronic storage medium and the electric controller of the described method of enforcement described in claim arranged side by side on road.

In dependent claims, provide preferred design plan.

According to an aspect of the present invention, comprise the following steps for the method for the energy management of the vehicle that travels with certain speed on road:

-on described road, try to achieve object point, described object point is positioned at described vehicle front one segment distance along travel direction;

-determine sliding path, described vehicle on described sliding path with predetermined command speed, especially arrive object point in predetermined speed band in the situation that not interfering by braking; And

-in the time that vehicle is positioned on sliding path, slide signal based at least one about other information outputs of traffic, be positioned on described road at vehicle described in described traffic.

In the scope of said method, not by a kind of running state that arrives interferingly object point and be construed as vehicle of braking, in described running state, be the actuating device supply driving-energy of vehicle.This running state of vehicle is also referred to as " sliding ".Vehicle is braked by friction drag and air resistance at this.The retarding moment of the vehicle that additionally slows down of other brakeless (bremsfremd), can be applied on vehicle as the drag torque being provided by combustion engine.Therefore vehicle slides in speed band inside.The speed range that speed band allows for vehicle during this is construed as the process of sliding, what in the scope of described speed band, in this speed range, the each velocity amplitude arbitrarily for vehicle was regarded as allowing.The scope of speed band can temporal evolution and so determine certain deviation of allowing with desirable coasting speed curve at this.

The thinking of said method is, slides auxiliary device and finally calculates the driving strategy of fuel oil consumption optimum, and this driving strategy is offered to the chaufeur of vehicle what mention at the first bruss.The thinking of said method is also, the chaufeur of vehicle does not want to follow the suggestion of sliding auxiliary device.In the scope of said method, find out at this, can not by measurement technique try to achieve the intention of chaufeur, whether it wants to follow or does not want to follow the suggestion of sliding auxiliary device.

Thinking based on this cognitive said method is, released the intention of chaufeur by traffic, for example wanting according to the speed of its selection the indication item how to show because this traffic is not only chaufeur to this, is also the indication item how chaufeur must show according to traffic.By being attached to, traffic in the function that slides auxiliary device, therefore can avoid sliding the unnecessary or basic chaotic intervention of auxiliary device for chaufeur.

In a kind of embodiment of said method, described information comprises the speed of vehicle.The thinking of this embodiment is, can be released with high possibility the motoring condition of being intended by chaufeur by speed itself.The chaufeur that for example often changes its speed is driven very sports type and the mode of travelling of fuel oil optimum is lost interest in most probably.

In the special embodiment of one of said method, in the time that speed drops on predetermined speed interval inside, provide and slide signal.The thinking of this improvement project is, the speed restriction that the chaufeur already travelling with too high speed on the road with current speed restriction most probably also will be low after not interested adaptation.Can set out thus on the other hand, the chaufeur obviously more slowly travelling than current permissible velocity runs into obstacle in traffic, as for example farm vehicle.In two kinds of situations, chaufeur most probably not interested use slides auxiliary device, thereby should only activate and slide auxiliary device around current maximum speed in certain speed range inside.

In the another kind of embodiment of said method, described other information can comprise the running state of vehicle, can release equally thus chaufeur and want how to treat vehicle or even must how to treat vehicle.When the running state of vehicle is in the time that this is mode of motion, in described mode of motion, the chaufeur of vehicle is paid much attention to acceleration and the braking of the fuel consumption of vehicle most probably, can set out thus, and chaufeur is not interested reduces fuel oil consumption to slide auxiliary device impact.

In the another kind of embodiment of said method, described other information comprise the distance with respect to the vehicle travelling above, can release thus traffic, and chaufeur is inner or soon will be in described traffic inside in described traffic.In the time that described distance exceedes predetermined value or when identifying relative velocity between two vehicles enough hour, for example, can provide and slide signal.Otherwise can find out that vehicle after all must braking, sliding is infeasible and then need not be by sliding the auxiliary device intervention.

Really can effectively realize the manipulation of wherein said intervention based on sliding signal and for example no longer allow the Das Gaspedal to vehicle by the intervention of sliding auxiliary device.In the special embodiment of one, described method comprises the following steps, and, in the time that signal is slided in output, output instruction is the manipulation of the Das Gaspedal to vehicle with adjusting to chaufeur.

According to a further aspect in the invention, described device is set, to the vehicle travelling with certain speed on road is carried out to energy management:

-to try to achieve object point on described road, described object point is positioned at described vehicle front one segment distance along travel direction;

-to determine sliding path, described vehicle on described sliding path with predetermined command speed, especially arrive object point in predetermined speed band in the situation that not interfering by braking; And

-while being positioned on sliding path with the described vehicle of box lunch, slide signal based at least one about other information outputs of traffic, be positioned on described road at vehicle described in described traffic.

Described device can further expand so arbitrarily (weiterbar), thus the method that can implement to point out according to dependent claims.

In a modification of the present invention scheme, described device has memory device and treater.Described method, during the form with computer program is stored in memory device at this and when computer program is when memory device is loaded into treater, is provided for implementing the treater of described method.

According to a further aspect in the invention, vehicle comprises described device.

According to a further aspect in the invention, described computer program is set, with implement said method institute in steps.

According to a further aspect in the invention, on electronic storage medium, store above-mentioned computer program.

According to a further aspect in the invention, electronic controller has above-mentioned electronic storage medium.

Brief description of the drawings

At length set forth preferred embodiment of the present invention by accompanying drawing below.Accompanying drawing illustrates:

Fig. 1 is the schematic diagram of the vehicle on road;

Fig. 2 is the schematic diagram of the instrument carrier panel of the vehicle shown in Fig. 1; And

Fig. 3 is the constructional drawing of the control setup in the vehicle shown in Fig. 1.

Identical element is provided with identical Reference numeral and only describes once in the accompanying drawings.

Detailed description of the invention

Show the schematic diagram of the first vehicle 2 on road 4 with reference to figure 1.

Described the first vehicle 2 advances corresponding to the travel direction of actual speed 6 with actual speed 6 edges on road 4.On road 4, before primary importance 8 is positioned at the first vehicle 2 along travel direction, from described primary importance, the first vehicle 2 is for example because speed restriction applicable from this position must slow to command speed 10.If the actual speed 6 of the first vehicle 2 is greater than command speed 10, the brake regulation in the first vehicle 2 may be necessary, to make the first vehicle 2 reach necessary command speed 10.

Because brake regulation is nothing but that in the scope of existing embodiment, the first vehicle 2 should only be braked command speed 10 by its air resistance and friction drag from kinetic energy to friction heat and then to the transformation of degradation of energy, this following table is shown and slides.Should from definite second place 14, before primary importance 8, on sliding path 16, not supply with and for example pass through the driving-energy that combustion engine and/or electrical motor produce for the first vehicle 2 moving with actual speed 6 for this reason.So the first vehicle 2 slides and is the highest mobile along travel direction continuation with command speed 10 from primary importance 8.

Determine the second place 14 at this by sliding auxiliary device 18, described sliding path 16 starts with the described second place, described in slide auxiliary device 18 and determine the difference between actual speed 6 and command speed 10 by navigating instrument 20.Speed difference based on definite and the resistance of above-mentioned the first vehicle 2, slide auxiliary device 18 and determine necessary sliding path 16 at this, and it is necessary that described sliding path there is no brake regulation to slow to command speed 10 for the first vehicle 2.If known sliding path 16, sliding so auxiliary device 18 can be so that the identification of primary importance 8 is for example drawn to the second place 14 by navigating instrument 20 in familiar for those skilled in the art mode equally, sliding path 16 must be from the second place.

Before further describing described embodiment according to Fig. 1, should be first with reference to figure 2, Fig. 2 shows the schematic diagram of the instrument carrier panel 22 of the first vehicle 2 shown in Fig. 1.

Described instrument carrier panel 22 comprise the rotating speed display device 24 of the rotating speed of further not mentioning for showing the first vehicle 2, for show the first vehicle 2 actual speed 6 speed display device 26, for be presented at the first vehicle 2 fuel tank not shown further the fuel liquid level of further not mentioning fuel tank 28 and for showing the temperature indicating device 30 of the temperature of further not mentioning of cooling water circulation not shown further of the first vehicle 2.

In existing embodiment, the arranged beneath of speed display device 26 belong to slide auxiliary device 18 slide lampet 32, described in slide lampet by have shown in Figure 3 slide signal 34 slide that auxiliary device 18 triggers and can be luminous.At this, in the time that the first vehicle 2 has arrived the second place 14 and be positioned on sliding path 16, slide lampet 32 and should light by what slide that auxiliary device 18 triggers.

Show the constructional drawing that slides auxiliary device 18 with reference to figure 3.

The described auxiliary device 18 that slides comprises calculating unit 36, and described calculating unit receives actual speed 6 and receives command speed 10 from navigating instrument 20 from the speed sensor 38 on the first vehicle 2.By the deceleration/decel of the first vehicle 2 and known formula , calculating unit 36 can calculate sliding path 16 in the first computer device 40, wherein

represent actual speed 6,

represent command speed 10,

represent the deceleration/decel of the first vehicle 2, and

represent sliding path 16.So-called deceleration/decel is construed as all impacts that vehicle 2 is slowed down, such as the drag torque being applied by combustion engine 2 in addition as friction drag and air resistance.If known sliding path 16, the second computer device 42 in calculating unit 36 can be based on passing through formula by the known primary importance 8 of navigating instrument 20

calculate the second place 14, for the sliding path 16 of the first vehicle 2 must be from the second place.At this,

represent primary importance 8 and

represent the second place 14.Finally, compare the actual position 46 of the second place 14 and the first vehicle 2 in the discriminator 44 in calculating unit 36, in the time that the first vehicle 2 has arrived the second place 14 with its actual position 46, described discriminator produces and slides signal 34.

But in existing embodiment, under definite condition, should interrupt sliding the output of signal 34, to the chaufeur of the first vehicle 2 is not shown to its obvious N/R information.

The first condition is checked in speed mointor 48.This speed mointor receives the current maximum speed 50 that will observe at the current actual position 46 of vehicle on road 4 from navigating instrument 20.In addition, speed mointor 48 receives the actual speed 6 of the first vehicle 2.Finally, speed mointor 48 can be predetermined speed tolerance 52.

The thinking of speed mointor 48 is just, when vehicle 2 travels with actual speed 6, and described actual speed with speed tolerance 52 or lower than or while exceeding current maximum speed 50, interrupt sliding signal 34 by corresponding switch 54.If actual speed 6 is with speed tolerance 52 lower than current maximum speed 50, can suppose thus has obstacle on road 4, and the chaufeur of the first vehicle 2 can not freely be selected actual speed 6.It is therefore nonsensical that suggestion chaufeur slides the first vehicle 2.If actual speed 6 exceedes current maximum speed 50 with speed tolerance 52, can conclude thus, when the chaufeur of vehicle in front 2 does not remain in current maximum speed 50 and he probably does not want to remain on the maximum speed 10 of the expection from primary importance 8 yet.Suggestion chaufeur slides therefore also nonsensical.At this, for described lower than with exceed speed tolerance 52 can be set in value for example 20km/h, identical.Alternatively, for described lower than with exceed also can select different values.

If actual speed 6 is not within the dimension limit of being predetermined by speed tolerance 52, speed mointor 48 can be exported interrupt signal 56, described interrupt signal trigger switch 54 and then interrupt sliding signal 34 and output to and slide on lampet 32.

The second condition can be the distance 58 with respect to the second vehicle 60 travelling above at the first vehicle 2, and described distance for example can be tried to achieve by the rang sensor 62 on the second vehicle 60.When tried to achieve distance for example lower than or for one predetermined period during lower than minor increment, distance detection device 64 can contrast and export interrupt signal 56 by tried to achieve distance 58 and minor increment 66.Also can consider, carry out temporal differentiate and drawn the actual speed 68 of the second vehicle 60 by the actual speed 6 of the first vehicle 2 by the distance 58 to tried to achieve, and by the actual speed 6 of the actual speed of the second vehicle 60 68 and the first vehicle 2 or the minimum velocity contrast that is not shown specifically.

In the scope of distance detection device 64, can be identified in the obstacle as the second vehicle 60 on road 4, described obstacle can require the brake intervention to the first vehicle 2.For this obstacle, the chaufeur of the first vehicle 2, except braking its vehicle 2 and interrupting the process that slides that may start, does not have other possibilities at all.Here also interrupt sliding signal 34 by trigger switch 54 and output to and slide on lampet 32, and protection chaufeur is in case the information that seems for it chaotic in the worst case.

The third condition can be that running state 70, the first vehicles 2 of the first vehicle 2 are currently operating in described running state.Described running state for example can comprise combustion engine 2 to the first vehicle 2 and/or the triggering of change-speed box, in the scope of mode of motion can with at normal described combustion engine and/or the change-speed box of differently triggering in service.In the scope of mode of motion, should give this possibility of chaufeur of the first vehicle 2, accelerate fast its vehicle and (under high fuel oil consumption) and also make the first vehicle 2 reach higher actual speed 6.

State monitoring device 72 can be monitored the running state 70 of the first vehicle 2 and be drawn by this running state, and whether the chaufeur of the first vehicle 2 intends is on earth slided.If chaufeur for example moves its vehicle 2 with the above-mentioned mode of motion of mentioning, chaufeur may be wanted to accelerate all the time to keep its vehicle 2 very much readyly, thereby the intention of coasting vehicle is false more precisely.Here it is also nonsensical or rather that signal 34 is slided in output.

Therefore state monitoring device 72 compares the running state of vehicle 2 70 and corresponding state 74, and mode of motion just is as mentioned above such, for mode of motion, the chaufeur of the first vehicle 2 to slide intention false more precisely.If vehicle 2 moves as running state 70 using corresponding state 74, export interrupt signal 56 and interrupt sliding signal 34.

Claims

1. for the method for the energy management at the upper vehicle (2) travelling with speed (6) of road (4), said method comprising the steps of:

-on described road, obtaining object point (8), described object point is positioned at described vehicle (2) front one segment distance along travel direction;

-determine sliding path (16), described vehicle (2) on described sliding path with predetermined command speed (10), especially arrive object point (8) in predetermined speed band in the situation that not interfering by braking; And

-in the time that described vehicle (2) is positioned on sliding path (16), based at least one other information about traffic (6,58,70), signal (34) is slided in output, is positioned on described road (4) at vehicle described in described traffic (2).

2. by method claimed in claim 1, wherein said information (6,58,70) comprises the speed (6) of described vehicle (2).

3. by method claimed in claim 2, wherein in described speed (6) drops on predetermined speed interval (52) time, described in providing, slide the output of signal (34).

4. by the method described in any one in the claims, wherein said other information (6,58,70) comprise the running state (70) of described vehicle (2).

5. by method claimed in claim 4, wherein in the time that the running state (70) of described vehicle is mode of motion (74), slide the output of signal (34) described in inhibition.

6. by the method described in any one in the claims, wherein said other information (6,58,70) comprise the distance (58) with respect to the vehicle travelling above (60).

7. by method claimed in claim 6, wherein in the time that described distance (58) exceedes predetermined value (66), slide signal (34) described in output.

8. by the method described in any one in the claims, further comprising the steps of: in the time sliding signal (34) described in output, output instruction (32) gives chaufeur to regulate the manipulation of the Das Gaspedal to described vehicle (2).

9. device (18), especially calculating unit, arranges described device, to the vehicle travelling with certain speed on road is carried out to energy management:

-to obtain object point (8) on described road, described object point is positioned at described vehicle (2) front one segment distance along travel direction;

-to determine sliding path (16), described vehicle (2) on described sliding path with predetermined command speed (10), especially arrive object point (8) in predetermined speed band in the situation that not interfering by braking; And

-be positioned at sliding path (16) when upper with the described vehicle of box lunch (2), based at least one other information about traffic (6,58,70), signal (34) is slided in output, is positioned on described road (4) at vehicle described in described traffic (2).

10. computer program, arranges described computer program to implement by the institute of the method described in any one in claim 1 to 8 in steps.

11. electronic storage mediums, on described electronic storage medium, storage is by computer program claimed in claim 10.

12. electronic controllers (36), described electronic controller has by the electronic storage medium described in claim 11.