DE102009027904A1 - Device for switching on and off of operating modes of an internal combustion engine, start / stop system for a motor vehicle, and method for operating an internal combustion engine. - Google Patents

Abstract

The invention relates to a device for switching on and off operating modes of an internal combustion engine, in particular an internal combustion engine for a motor vehicle, wherein a plurality of operating modes of the internal combustion engine which reduce energy consumption and / or harmful gas emissions can be selectively switched on or off by an operator. Furthermore, the invention relates to a method for operating an internal combustion engine, in particular an internal combustion engine for a motor vehicle, in a mode of operation which reduces energy consumption and / or harmful gas emissions, the internal combustion engine being sequential and / or in parallel with a plurality of energy consumption and / or harmful gas emissions reducing operating modes can be operated.

Description

The The invention relates to a device for switching on or off of Operating modes of an internal combustion engine to z. B. a motor vehicle according to a Selection of operating modes to operate. Furthermore, the invention relates a start / stop system for a Motor vehicle. Furthermore, the invention relates to a method for operating an internal combustion engine in an energy consumption and / or Harmful gas emissions reducing operation.

State of the art

today Start / stop systems for Motor vehicles operate to supply fuel an internal combustion engine stop when the motor vehicle stops or already for a certain short period of time. During this downtime become consumers of electrical energy, such. B. lighting equipment or a radio, from a battery of the motor vehicle with electric Power supplied. In the following, a clutch of the motor vehicle actuated, So the first gear is engaged and the internal combustion engine automatically started. The time duration for Starting the engine is less than the time for a Actuate and then releasing the clutch; this way he learns Driver of the motor vehicle no time delay when restarting.

Such However, start / stop systems only work under certain conditions. This is how start / stop systems work at low outside temperatures or one currently low electrical capacity of the battery is not. hereby results in a comparatively inconsistent behavior of the motor vehicle. Some start / stop systems can be shut down by means of an ECO control, which the Driver feel a uniform driving behavior under its own leadership gives. The ECO function of the motor vehicle is in contrast to the ever-growing efforts the output environmentally damaging To minimize carbon dioxide.

task

It It is an object of the invention to provide an improved device for Switching on or off operating modes of an internal combustion engine, a improved start / stop system for a motor vehicle, and a improved method for operating an internal combustion engine in indicate a mode of operation that reduces energy consumption and / or harmful gas emissions. This should be possible on the one hand be, energy consumption and / or emissions of harmful gas emissions, especially to climate damaging Carbon dioxide emissions, and therefore fuel consumption to minimize the motor vehicle and on the other hand the driver Impression of a uniform driving behavior under its own To give guidance. Ie. the driver should control the behavior of the motor vehicle in terms of energy consumption and / or harmful gas emissions mitigating Operating modes of the motor vehicle automatically in a timely apron can set.

Disclosure of the invention

The The object of the invention is achieved by means of a device for Switching off operating modes of an internal combustion engine, according to claim 1; a start / stop system for a motor vehicle, according to claim 7; and a method of operating an internal combustion engine in one Energy consumption and / or harmful gas emissions mitigating operation, according to claim 8 solved. Advantageous developments of the invention will become apparent from the dependent claims.

The inventive device for switching on or off operating modes of an internal combustion engine, in particular an internal combustion engine of a motor vehicle, draws characterized by having a variety of energy consumption and / or harmful gas emissions mitigating, in particular carbon dioxide emissions reducing operating modes by a driver partially switched on or off. Ie. at a Variety of different energy consumption and / or harmful gas emissions diminishing operating modes the driver according to the invention the opportunity the motor vehicle in only one, a plurality or even all Energy consumption and / or harmful gas emissions mitigating operating modes to operate or not to operate. He can do these modes of operation be partially effective as needed or comfort. So it can z. B. special energy consumption and / or harmful gas emissions, such as z. B. reducing carbon dioxide emissions Operating modes, on or off.

Preferred operating modes that reduce energy consumption and / or harmful gas emissions are the following: general operating energy consumption and / or operating mode which reduces emissions, in particular at full or partial load, of the internal combustion engine, energy recovery within the motor vehicle, in particular on a descent and / or in an idle, a charging strategy for a battery or an accumulator of the motor vehicle, in particular during acceleration, downhill and / or idling, a coupling or decoupling a drive train of the motor vehicle, in particular at a departure and / or idling, an air conditioning a passenger gas dreams, especially on hot days, an automated gearshift, especially with a focus on low fuel consumption. Other modes of operation are of course applicable as long as they have an impact on energy consumption and / or emissions of harmful gas, that is, in particular, on fuel consumption and thus also on the carbon dioxide emissions of the motor vehicle. The operating modes can work in parallel and / or sequentially; that is, the vehicle may be operated simultaneously in two or more such modes of operation.

In an embodiment the invention, the activation or deactivation of the operating modes by means of at least one hardware control. This may be the hardware control be provided in a dashboard of the motor vehicle. Applicable are for example mechanical buttons, buttons, Controls, rotary or selector switches. Depending on activation / deactivation of the hardware control the driver can on the driving and comfort behavior of the motor vehicle according to his wishes and preferences influence.

comes only a single hardware control to use, so this is preferably a selector switch with more than two positions. Ie. in In an extreme position, all relevant operating modes are on and off in the other extreme position are all relevant operating modes switched off. In the or the positions of the selector in between are the energy consumption in an ascending or descending order and / or harmful gas emissions reducing operating modes added or switched away. So can For example, in such an intermediate position two harmful gas or Carbon dioxide emissions mitigating operating modes established and a or a plurality of other pollutant gas or carbon dioxide emissions mitigating operating modes are not established. An additional one Application to power consumption reducing operating modes is of course applicable.

In an embodiment the invention is the switching on or off the energy consumption and / or Harmful emissions reduce operating modes by means of at least one Software control. Here, the software control part a graphical user interface in the motor vehicle, such as B. be a touch screen. Applicable are for example electronic buttons or safety edges. Depending on the activation / deactivation of the software control element, the driver can on the driving and comfort behavior of the motor vehicle according to his wishes and Preferences influence. Such an electronic control can additionally to hardware controls or even used alone.

In embodiments The invention are by means of an electronic control unit (ECU = Electronic / Engine Control Unit) - ie consumers of electrical energy, such as lighting equipment, one or a plurality of batteries or accumulators, an entertainment device etc. - im Motor vehicle according to a Preselection controlled by the hardware or software control element. This can by a distributor or a corresponding control of a Generators made of electrical energy.

According to the invention Is it possible, special energy consumption and / or harmful gas emissions mitigating Establish operating modes of a motor vehicle selectively or selectively unconsidered allow. This can be done depending on a driver's request. So is for example, it is possible in a more comfortable mode of operation, a plurality of power consumption and / or harmful gas emissions disregarding diminishing operating modes while still leaving one or even a few energy consumptions and / or harmful gas emissions mitigating operating modes are active, so z. For example, emissions continue to be of carbon dioxide are minimized. On the other hand, it is also possible to have one higher Energy consumption and / or higher Avoiding pollutant emissions by maximizing the number of operating modes involved pre-set by the driver are active.

Brief description of the figures

The Invention will be described below with reference to exemplary embodiments with reference on the attached Drawing closer explained. In the drawing show:

1 in a schematic end view of a section of a dashboard of a motor vehicle, with controls for a device according to the invention for switching on and off of operating modes of the motor vehicle; and

2 a schematic diagram for an inventive control of consumers of electrical energy according to a preselection by a driver of the motor vehicle.

Embodiments of the invention

There are a variety of scenarios in motor vehicles, which have an influence on a power delivery and the operating conditions of the motor vehicle, which in turn has effects on ride comfort, energy consumption and / or harmful gas emissions, especially carbon dioxide emissions, of an internal combustion engine of the motor vehicle. This is for example a general driving mode (full / partial load), an energy recovery, a La Strategy for a battery 3 or accumulator 3 - please refer 2 -, A coupling of a drive train, a climate control of a passenger compartment, an automated gear shift, etc. These scenarios are from a motor controller 2 or an electronic control unit 2 implemented accordingly to achieve the most comfortable driving experience with the lowest possible fuel consumption.

in the Below, the invention in the application to the addition or Shutdown of carbon dioxide emissions reducing operating modes describe an internal combustion engine or a motor vehicle. However, the invention is also analogous to energy consumption or other Harmful emissions reduce operating modes of the internal combustion engine or of the motor vehicle.

One Driver of the motor vehicle can make changes in driving behavior, caused by the above or other scenarios will not always accept. With the increasing number of carbon dioxide (or other, see above) degrading modes of operation of the motor vehicle increases their mutual influence and the driver has these "solid Presets "always to accept more. According to the invention Is it possible, to turn one or a plurality of these functions on or off, resulting in a homogeneous, tailored to a particular driver or consistent driving experience lets set, while still possible is to minimize emissions of carbon dioxide.

For example, in a given driving situation of the motor vehicle, a global strategy for minimizing carbon dioxide is deemed necessary for the battery 3 or the accumulator 3 when charging a high power, such as during acceleration, while other functions such as air conditioning of the passenger compartment are still in operation, resulting in a power loss of the motor vehicle. However, if the driver perceives this power loss as disturbing, it is possible according to the invention, the air conditioning of the passenger compartment in the event of acceleration and / or acceleration with charging of the battery 3 selectively interrupting while other or all other carbon dioxide reducing operating modes of the motor vehicle are still active. Ie. the driver simply disables a single function to reduce carbon dioxide emissions instead of all functions. As a result, according to the invention, only part of the minimization of carbon dioxide emissions is eliminated in order to produce a typical driving feel, while other functions of carbon dioxide-reducing operating modes are still established and fulfill their tasks.

According to the invention, the driver - see 1 - Only a corresponding control 10 . 11 to activate what activates or deactivates the corresponding function, ie the operating mode which reduces the carbon dioxide in question, ie switches it on or off. Possible implementations of this concept are explained in more detail below.

So it is possible, the inventive device with one or a plurality of hardware controls 10 and / or with one or a plurality of software controls 11 equip. These may be mechanical and / or electronic buttons, buttons, controls, rotary switches, selector switches, buttons or safety edges. The hardware controls 10 are preferably located on / in a dashboard 6 whereas the software controls 11 preferably on a graphical user interface 7 are located. However, it is also possible to realize this by means of a mechanical or electronic selector switch, which has more than two positions, so not only an activating and a deactivating position.

Each control 10 . 11 or any possible position of the relevant control element 10 . 11 is associated with a particular carbon dioxide reducing operating mode of the vehicle to enable or disable it. It is of course also possible to have more than just a carbon dioxide reducing operating mode a control element 10 . 11 or a possible position of the relevant operating element 10 . 11 assign, whereby a larger engagement can be taken on a power delivery of the motor vehicle. In the case of hardware controls 10 It is preferable that a plurality of these are in the dashboard 6 are present, and these as a switch 10 , but preferably as a button 10 are formed. The device according to the invention operates in accordance with the specifications of the driver. Some drivers want a lower power delivery of the motor vehicle with a comparatively high level of carbon dioxide entry, while other drivers want a high level of power delivery with less carbon dioxide entry.

2 shows the inventive device of carbon dioxide reducing operating modes of the motor vehicle in a schematic representation. From the controls 10 . 11 are corresponding electrical signals to the engine control 2 or the electronic control unit 2 (ECU = Electronic / Engine Control Unit) of the motor vehicle which transmits the driver selected setting for consumers of electrical energy 3 . 4 implemented accordingly. The reaction takes place in the present example, in particular in the area of the battery 3 or the accumulator 3 and one or one Majority of other consumers of electrical energy 4 such as interior or exterior lighting equipment, entertainment equipment, energy recovery, air conditioning of the passenger compartment, etc. The electronic control unit 2 controls the internal combustion engine 1 , a generator or a distributor of electrical energy 5 and possibly the consumer of electrical energy 3 at. Lines with arrows indicate electrical or mechanical power transport, whereas lines without arrows represent data lines.

Claims (10)

Device for switching on or off of operating modes of an internal combustion engine, in particular an internal combustion engine for a motor vehicle, characterized in that a plurality of energy consumption and / or harmful gas emissions reducing operating modes of the internal combustion engine are selectively switched on or off. Device according to claim 1, characterized in that such an energy consumption and / or harmful gas emissions mitigating operating mode of at least one of the following operating modes of the motor vehicle is: - a general energy consumption and / or noxious operation mode, in particular at full or partial load of the internal combustion engine ( 1 ); An energy recovery, in particular at a departure and / or in an idle; - a charging strategy for a battery ( 3 ) or an accumulator ( 3 ), in particular during acceleration, downhill and / or idling; - a coupling or decoupling of a drive train, in particular during a downhill and / or idling; - Air conditioning of a passenger compartment, especially on hot days; - An automated gearshift, especially with focus on low fuel consumption. Device according to claim 1 or 2, characterized in that the switching on and off of the energy consumption and / or harmful gas emissions mitigating operating modes by means of at least one hardware control element ( 10 ) is feasible. Device according to claim 3, characterized in that the hardware operating element ( 10 ) in a dashboard ( 6 ) of the motor vehicle is arranged. Device according to one of claims 1 to 4, characterized in that the switching on and off of energy consumption and / or harmful gas emissions mitigating operating modes by means of at least one software control element ( 11 ) is feasible. Device according to one of claims 1 to 5, characterized in that the software operating element ( 11 ) Part of a graphical user interface ( 7 ). Start / stop system for a motor vehicle with a Device according to one of the claims 1 to 6. Method for operating an internal combustion engine, in particular an internal combustion engine for a motor vehicle, in one Energy consumption and / or harmful gas emissions, in particular carbon dioxide emissions, mitigating operation, characterized in that the internal combustion engine sequentially and / or in parallel in a plurality of energy consumption and / or Harmful gas emissions reducing operating modes can be operated. A method according to claim 8, characterized in that such an energy consumption and / or harmful gas emissions reducing operation of the motor vehicle has at least one of the following operating modes: - a general energy consumption and / or noxious operation mode, especially at full or partial load of the internal combustion engine ( 1 ); An energy recovery, in particular at a departure and / or in an idle; - a charging strategy for a battery ( 3 ) or an accumulator ( 3 ), in particular during acceleration, downhill and / or idling; - a coupling or decoupling of a drive train, in particular during a downhill and / or idling; - An air conditioning of a passenger compartment, especially on hot days, - an automated gearshift, especially with a focus on low fuel consumption. Method according to claim 8 or 9, characterized in that by an operator the Operating modes of the internal combustion engine selectively switched on or off can be.

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