GB2450344A - Vehicle Non Essential Power Management System - Google Patents

Vehicle Non Essential Power Management System Download PDF

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Publication number
GB2450344A
GB2450344A GB0711912A GB0711912A GB2450344A GB 2450344 A GB2450344 A GB 2450344A GB 0711912 A GB0711912 A GB 0711912A GB 0711912 A GB0711912 A GB 0711912A GB 2450344 A GB2450344 A GB 2450344A
Authority
GB
United Kingdom
Prior art keywords
management system
power
power management
motion related
related systems
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB0711912A
Other versions
GB0711912D0 (en
Inventor
Paul Clifford
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB0711912A priority Critical patent/GB2450344A/en
Publication of GB0711912D0 publication Critical patent/GB0711912D0/en
Publication of GB2450344A publication Critical patent/GB2450344A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3205—Control means therefor
    • B60H1/3208—Vehicle drive related control of the compressor drive means, e.g. for fuel saving purposes
    • 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
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • 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
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/30—Conjoint control of vehicle sub-units of different type or different function including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
    • 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
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
    • B60W30/18—Propelling the vehicle
    • B60W30/188—Controlling power parameters of the driveline, e.g. determining the required power
    • B60W30/1886—Controlling power supply to auxiliary devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3236—Cooling devices information from a variable is obtained
    • B60H2001/3266—Cooling devices information from a variable is obtained related to the operation of the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3269—Cooling devices output of a control signal
    • B60H2001/327—Cooling devices output of a control signal related to a compressing unit
    • 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
    • B60W2556/00—Input parameters relating to data
    • B60W2556/45—External transmission of data to or from the vehicle
    • B60W2556/50—External transmission of data to or from the vehicle for navigation systems

Abstract

This will automatically decrease power to some of the non-motion related systems (such as the air-conditioning) when the driver urgently needs to accelerate or the engine is under significant strain (existing engine management systems can assist in identifying these situations). This invention will therefore provide the user more vehicle velocity at critical times and/or greater fuel efficiency. This issue is one of increasing significance as vehicles are tending to have more additional devices and smaller engines.

Description

* 2450344 Page iofS Vehicle Power Management System This invention
relates to a power management system for a vehicle.
Car engines do not merely provide motion to the vehicle but are also used to power an assortment of additional devices; these can sometimes include air-conditioning units, heated windows & seats, cigarette lighters, music systems, phone chargers, etc. These additional devices are manually switched on or off by the user with little or no regard for the other (motion related) demands that are being made of the engine. This invention proposes a power management system that automatically decreases power to (or switches off) some of the non-motion related systems depending on the motion related demands that are being made of the engine. Such a power management system could similarly increase power to (or switch on) some of the non-motion related systems when the vehicle is travelling down hill.
Decreasing Power to Non-Motion Related Systems The power drain caused by additional devices such as those mentioned above can have a significant effect on the power that is available for more critical functions, such as accelerating out of a dangerous situation or up a steep hill. This issue Is one of increasing significance as vehicles are tending to have more additional devices and smaller engines.
To overcome this Issue the present invention proposes a power management system that automatically reduces power to (or switches off) some non-motion related systems for a short period of time. This invention will therefore provide the user more vehicle velocity at critical times and/or greater fuel efficiency.
An engine management system is fitted to virtually all new cars and measures many engine characteristics, such as fuel input and engine speed. Other relevant data may also be available from other sensors, such as the internal temperature of the vehicle. From analysing the available data (and considering driver preferences) it is possible to determine when it is most appropriate to reduce power to non-motion related systems.
The point at which power is reduced to non-motion related systems will vary from vehicle to vehicle. The owner of an expensive, high powered, luxury car might only wish to have the power reduced to non-motion related systems in extreme circumstances, whereas the owner of a low powered budget car will probably wish to have power reduced to non-motion related systems more frequently. The car owner's preferences could be assumed by the type of car, and the point at which power was reduced to non-motion related systems fixed during manufacture, or there could be a facility that enables the owner to input their preferences.
Circumstances under which power could be reduced to non-motion related systems for a short period include: Pageof5 * Rapid increase of fuel input to the maximum possible for the vehicle. This would indicate that the driver needs to urgently accelerate out of danger.
* Fairly high fuel input combined with low engine speed which is not quickly increasing or is even falling. This would indicate that the engine is under considerable strain, possibility due to going up a steep hill.
Whether a non-motion related system Is shut down or merely has its power intake reduced would depend on the unit and the user's preferences. For example, the user might be happy for the car stereo to loose all volume when accelerating hard (it might also help them concentrate) but they might not be willing for it to loose' the position in the album. Furthermore, it may be desirable to not immediately switch back on all non-motion related systems when the engine characteristics revert back to normal'; for example, air-conditioning units operate most effectively when they are not switched on and off in short succession.
Increasing Power to Non-Motion Related Systems When a car is travelling down hill the brake is often applied which not only wastes energy but also wears out and heats up the brake pads making them less effective. If the engine is engaged it will normally be acting as a brake under these circumstances. If the engine is in a low gear the engine braking' effect is increased and there are sometimes signs by steep hills advising drivers to engage a low gear for this reason.
There are several indications that could be used to identify when a vehicle is travelling down a hill, including, when the fuel input is at a minimum but the engine speed is high.
When a vehicle is travelling down a hill more power could be directed to non-motion related systems, for example, if this is likely to increase engine braking, slightly reduce power requirements at a later time or slightly improve the driving experience. For example, if It is cold day the heated windows could be switched on -maximising visibility. If it is a hot day and the air conditioning is switched on, more power could be directed to it while the cabin temperature remaining unchanged. This could be achieved by automatically reducing the fan speed or mixing the cold air produced with some hot air. This would reduce the temperature of the air-conditioner's heat exchanger, thus creating a cold thermal battery which would reduce the amount of power required to provide cool air immediately afterward.

Claims (5)

  1. * * Page3of.5 Claims 1. A power management system that automatically
    decreases power to (or switches off) some of a vehicle's non-motion related systems depending on the motion related demands that are being made of the engine.
  2. 2. A power management system that automatically increases power to (or switches on) some of the non-motion related systems when the vehicle is travelling down hill.
  3. 3. A power management system according to claim I and/or 2 that uses existing or additional sensors and capabilities to identify when it is appropriate to automatically direct power to non-motion related systems, for example, the sensors and data processing capabilities of the engine management system.
  4. 4. A power management system according to any of the preceding claims that determines the sensor input(s) and their corresponding levels at which the power management system will automatically direct power to or from non-motion related systems by either them being set during manufacture and/or adjusted by the owner.
  5. 5. A power management system according to any of the preceding claims that enables the owner to manually override it, for example, by switching it off.
GB0711912A 2007-06-20 2007-06-20 Vehicle Non Essential Power Management System Withdrawn GB2450344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0711912A GB2450344A (en) 2007-06-20 2007-06-20 Vehicle Non Essential Power Management System

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0711912A GB2450344A (en) 2007-06-20 2007-06-20 Vehicle Non Essential Power Management System

Publications (2)

Publication Number Publication Date
GB0711912D0 GB0711912D0 (en) 2007-08-01
GB2450344A true GB2450344A (en) 2008-12-24

Family

ID=38352556

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0711912A Withdrawn GB2450344A (en) 2007-06-20 2007-06-20 Vehicle Non Essential Power Management System

Country Status (1)

Country Link
GB (1) GB2450344A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016156716A1 (en) * 2015-04-02 2016-10-06 Peugeot Citroen Automobiles Sa Method for controlling a motor vehicle transmission

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4269033A (en) * 1980-01-30 1981-05-26 Birch Robert J Switching device
US4299094A (en) * 1980-03-10 1981-11-10 Lummen Chester F Controller for a vehicular air conditioner
US5546755A (en) * 1995-03-07 1996-08-20 Krieger; Todd N. Automatic air conditioner shutoff system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4269033A (en) * 1980-01-30 1981-05-26 Birch Robert J Switching device
US4299094A (en) * 1980-03-10 1981-11-10 Lummen Chester F Controller for a vehicular air conditioner
US5546755A (en) * 1995-03-07 1996-08-20 Krieger; Todd N. Automatic air conditioner shutoff system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016156716A1 (en) * 2015-04-02 2016-10-06 Peugeot Citroen Automobiles Sa Method for controlling a motor vehicle transmission
FR3034388A1 (en) * 2015-04-02 2016-10-07 Peugeot Citroen Automobiles Sa METHOD FOR CONTROLLING A TRANSMISSION OF A MOTOR VEHICLE

Also Published As

Publication number Publication date
GB0711912D0 (en) 2007-08-01

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)