WO2010127901A1

WO2010127901A1 - Control device

Info

Publication number: WO2010127901A1
Application number: PCT/EP2010/053603
Authority: WO
Inventors: Arnd Wendland; Rene Steinberg
Original assignee: Robert Bosch Gmbh
Priority date: 2009-05-08
Filing date: 2010-03-19
Publication date: 2010-11-11
Also published as: DE102009002962A1

Abstract

A control device (100) for a prime mover is connected to a data store (120), which provides a first control profile (210) and a second control profile (220, 230), each profile comprising at least one control value and/or one characteristic map for controlling the prime mover (110). The control device (100) can also be connected to a system (130) for determining positional information. The control device (100) is designed so as to select, depending on the positional information, the first control profile or the second control profile (220, 230) for controlling the prime mover. Using the second control profile (220, 230) results in different pollutant emissions and/or different noise emissions of the prime mover (110) than when the first control profile (210) is used.

Description

description

Title CONTROL DEVICE

The invention relates to a control device for an engine according to claim 1 and a method for operating an engine according to claim 5.

It is known to control vehicle components of a motor vehicle location-dependent. DE 10 2004 040 378 A1 describes a method for transmitting information about a vehicle location to a checking station and there to determine a location-dependent operating determination information that is used to operate a vehicle component. The vehicle component may be a vehicle lighting or short-range radar.

It is further known that a motor vehicle driven by a motor vehicle has a control unit that controls the engine. For this purpose, control values and maps are stored in the control unit, which are used to control the engine. For example, the control values and maps may include information about spark timing, injection durations and quantities, and the like.

Disclosure of the invention

Object of the present invention is an improved control device for a

To provide an engine. This object is achieved by a control device having the features of claim 1. It is another object of the present invention to provide an improved method for operating an engine. This object is achieved by a method having the features of claim 5. Preferred developments are specified in the dependent claims. An inventive control device for an engine is connected to a data memory that holds a first control profile and a second control profile, each comprising at least one control value or a map for controlling the engine. The controller is also equipped with a system for

Determining a position information connectable. The control unit is further configured to select the first control profile or the second control profile for controlling the engine as a function of the position information. The use of the second control profile leads to a different pollutant emission and / or a different noise emission of the engine than the use of the first control profile.

This control unit has the advantage that several, adapted to specific requirements, control profiles can be kept. Depending on a position, an optimal control profile can be selected.

Preferably, the control device is designed to control a signaling device, which is intended to signal a selection of a control profile. Advantageously, a vehicle driver can be alerted to an actual or possible change of a used control profile.

In one embodiment, the data store maintains a control profile intended to operate the engine at a lower fuel consumption than when operating with a different control profile. Advantageously, thereby a particularly economical operation of the engine can be ensured.

In another embodiment, the data store maintains a control profile intended to operate the engine with lower emissions than when operating with a different control profile. Advantageously, this allows the engine to be operated particularly ecologically. A particular advantage is that thereby the operation of the engine can be made even in a position with stricter environmental requirements. An inventive method for operating an engine comprises steps for determining a position information and for selecting a first control profile or a second control profile, each comprising at least one control value or a map, depending on the position information. The use of the second control profile leads to another

Pollutant emission and / or a different noise emission of the engine than the use of the first control profile. Advantageously, this allows the operation of the engine at different positions with each optimized for the position control profile.

In a development of the method, the vehicle driver is requested to confirm the use of the selected control profile for operating the engine. Advantageously, this avoids an unwanted change of the control profile used by the driver.

Appropriately, the position information is determined by a navigation system. This has the advantage that a possibly existing navigation system can continue to be used and no additional devices are needed to implement the method.

Particularly preferably, information about an environmental deposit and / or a quiet zone is derived from the position information. This advantageously makes it possible to select a control profile for operating the engine that is adapted to specific features of the current position.

According to one embodiment, a control profile is selected which is intended to operate the engine with a lower fuel consumption than with another control profile. This can be used advantageously for a particularly economical operation of the engine.

According to another embodiment, a control profile is selected, which is intended to operate the engine with a lower pollutant emissions than in another control profile. This makes it possible to operate the engine particularly ecologically.

The invention will now be explained in more detail with reference to the accompanying figure. It shows: Figure 1 is a schematic block diagram of a control device for an engine.

Embodiments of the invention

1 shows a schematic representation of a control unit 100. The control unit 100 is connected to an engine 1 10 and provided for controlling the engine 110. The engine 1 10 may be a motor vehicle of a motor vehicle, for example an internal combustion engine, such as a diesel engine or a gasoline engine. The engine 1 10 may also be an electric motor or a hybrid combination of an internal combustion engine and an electric motor. The controller 100 may be, for example, a microcontroller or a computer.

The control unit 100 is connected to a data memory 120. The data memory 120 is a non-volatile data memory configured to store data and read back retained data. The data memory 120 may be a one-time or a rewritable data memory. For example, the data stores may be a DRAM, a

SRAM, flash, EEPROM or ROM memory.

In the data memory 120, a first control profile 210 is deposited. The control profile 210 includes one or more control values and / or one or more characteristic fields. The control values encompassed by the first control profile 210 and / or

Maps serve the control unit 100 for controlling the engine 1 10. The control values and / or maps encompassed by the first control profile 210 can include, for example, information on ignition times, injection durations and injection quantities of the engine 1 10. It can also for individual cylinders of the engine 1 10 individual control values in the first control profile

210 be included. The first control profile 210 may also include information about a minimum or maximum speed of the engine 110, a minimum or maximum torque to be output by the engine 110, or other variable parameters of the engine 110. In addition to the first control profile 210, the data memory 120 holds further control profiles. In the exemplary embodiment illustrated in FIG. 1, the data memory 120 holds, in addition to the first control profile 210, a second control profile 220 and a third control profile 230. The second control profile 220 and the third control profile 230 likewise each include one or more control values and / or

Maps for Controlling the Engine 1 10. The control values and / or maps contained in the second control profile 220 and in the third control profile 230 may differ from those of the first control profile 210.

For example, the control values and / or characteristic maps of the second control profile 220 can be designed for a particularly economical operation of the engine 1 10. In this case, the second control profile 220 contains control values and / or characteristic maps whose use in the control of the engine 1 10 leads to a particularly low fuel consumption of the engine 1 10 under otherwise identical operating conditions. This can be achieved, for example, in that control values and / or characteristic maps contained in the second control profile 220, which indicate injection times and / or injection quantities of the engine 1 10, differ from those of the first control profile 210.

The control values and / or characteristic maps contained in the third control profile 230 can be designed, for example, for a particularly ecological operation of the engine 1 10. In this case, the use of the control values and / or characteristic maps contained in the third control profile 230 for the control of the engine 1 10 leads to an operation of the engine 1 10, in which the smallest possible amount of pollutants arises. For this purpose, the control values and / or characteristic maps contained in the third control profile 230 may also differ from those of the first control profile 210.

Other control profiles optimized for special requirements can also be provided in the

Data storage 120 be deposited. By way of example, the data memory 120 may have a control profile whose control values and / or characteristic diagrams are designed for particularly efficient or sporty operation of the engine 1 10. The data memory 120 can also have a control profile whose control values and / or characteristic diagrams are designed for particularly quiet operation of the engine 1 10. The controller 100 is also connected to a signaling device 140. The signaling device 140 is configured to propose to a vehicle driver a change of the control profile used by the control unit 100 for confirmation or to indicate an automatic change of the control profile used by the control device 100. The signaling device 140 may be, for example, an optical or an acoustic signaling device. The signaling device 140 may be, for example, a screen or a loudspeaker.

According to a first embodiment of the invention, the control unit 100 offers the driver via the signaling device 140 one or more control profiles 210, 220, 230 for selection. The driver has the opportunity to select a suitable for his wishes and needs control profile 210, 220, 230. If, for example, the driver wishes a particularly sporty driving style, he can select a control profile optimized for high performance of the engine 1 10 for use. If, on the other hand, the vehicle driver desires a particularly economical operation of the engine 1 10 with low fuel consumption, then the vehicle driver can select a control profile optimized for an economic operation of the engine 1 10.

However, according to another embodiment of the invention, the control unit 100 may also make an automatic selection or pre-selection of suitable control profiles 210, 220, 230. For this purpose, the control unit 100 is connected to a system 130 for determining position information. In the system

130 for determining position information may be, for example, a navigation system. The system 130 is configured to determine information about a current position of the engine 1 10 or a motor vehicle containing the engine 1 10. The position information to be determined may, for example, take the form of latitude and longitude indications.

The control unit 100 is additionally designed to derive additional information about the current position from the position information determined by the system 130. The additional information about the current position may be, for example, information about at the current position existing environmental and / or noise control requirements. For example, the controller 100 may detect if the current position is within a so-called environmental zone in a large city. The control unit 100 can maintain corresponding tables and lists for deriving the additional information, in which position information determined by the system 130 is linked to additional information about the respective positions. In this way, the control unit 100 can detect, for example, when the motor vehicle containing the motor vehicle 1 10 enters an environmental zone.

If the control unit 100 detects an entry into an environmental zone, then the control unit 100 can automatically select a control profile for operating the engine 1 10, which causes a particularly low emissions of the engine 1 10, for example the third control profile 230. The automatic selection of a Other control profile by the control unit 100 can be signaled to the driver via the signaling device 140. Alternatively, when the driver enters the environmental zone, an optimized control profile, for example the third control profile 230, can be offered for use via the signaling device 140 without automatic use of the third control profile 230 by the control device 100.

The control profile 230 is then used only after confirmation by the driver.

If the control unit 100 detects an entry into a quiet zone with stricter noise protection conditions, the control unit 100 can select a control profile stored in the data memory 120, which is optimized for particularly quiet operation of the engine 1 10. Again, the controller may automatically use the optimized control profile to control the engine 110 or offer the use to the driver via the signaling device 140 for confirmation. The driver then has the option to confirm or reject the use of the optimized control profile. The confirmation or rejection of a proposed control profile by the driver can be done for example by pressing appropriate keys. The invention makes it possible for motor vehicles whose pollutant emissions in normal operation prohibit driving on environmental zones, by using a specially adapted control profile for controlling the engine 1 10 within the environmental zones to drive them at reduced power and reduced pollutant emissions nevertheless.

In a development of the invention, vehicle owners or drivers are enabled to deposit additional own control profiles in the data memory 120.

Claims

claims

1 . Control unit (100) for an engine (1 10), wherein the control unit (100) is connected to a data memory (120) which holds a first control profile (210) and a second control profile (220, 230), each having at least one control value or a map for controlling the engine (1 10), wherein the control device (100) with a system (130) for determining a

Position information is connectable, characterized in that the control unit is formed, depending on the position information, the first control profile (210) or the second control profile (220, 230) for

Selecting the control of the engine (1 10), and the use of the second control profile (220, 230) by the control unit (100) to another pollutant emission and / or another

Noise emission of the engine (1 10) leads to the use of the first

Control Profile (210).

2. Control device (100) according to any one of the preceding claims, wherein the control device (100) is designed to control a signaling device (140), which is intended to signal a selection of a control profile (210, 220, 230).

3. Control device (100) according to any one of the preceding claims, wherein the data storage holds a control profile (210, 220, 230), which is intended to operate the engine (1 10) with a lower fuel consumption, than when operating with another Control profile (210, 220, 230).

4. Control device (100) according to any one of the preceding claims, wherein the data memory holds a control profile (210, 220, 230), the thereto is provided to operate the engine (1 10) with a lower emissions than when operating with another control profile (210, 220, 230).

5. A method for operating an engine (1 10), comprising the following steps:

- determining a position information;

- Selecting a first control profile (210) or a second control profile (220, 230), each comprising at least one control value or a map for controlling the engine (1 10), depending on the

Position information, wherein the use of the second control profile (220, 230) results in a different pollutant emission and / or noise emission from the engine (110) than the use of the first control profile (210).

6. The method of claim 5, wherein a vehicle driver is prompted to confirm the use of the selected control profile (210, 220, 230) for operating the engine (1 10).

7. The method according to any one of claims 5 or 6, wherein the position information is determined by a navigation system (130).

8. The method according to any one of claims 5 to 7, wherein from the position information information about an environmental impact and / or a quiet zone is derived.

9. The method according to any one of claims 6 to 8, wherein a control profile (210, 220, 230) is selected, which is intended to operate the engine (1 10) with a lower fuel consumption than in another control profile (210, 220 , 230).

10. The method according to any one of claims 6 to 8, wherein a control profile (210, 220, 230) is selected, which is intended to hen operating the engine (1 10) with a lower pollutant emissions than in another control profile (210, 220, 230).