GB2467736A - Driver Control Aid For Vehicle Hybrid Systems - Google Patents

Driver Control Aid For Vehicle Hybrid Systems Download PDF

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Publication number
GB2467736A
GB2467736A GB0902204A GB0902204A GB2467736A GB 2467736 A GB2467736 A GB 2467736A GB 0902204 A GB0902204 A GB 0902204A GB 0902204 A GB0902204 A GB 0902204A GB 2467736 A GB2467736 A GB 2467736A
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United Kingdom
Prior art keywords
vehicle
energy
control
driver
hybrid
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Withdrawn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
GB0902204A
Other versions
GB0902204D0 (en
Inventor
Paul Andrews
William Meeson
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.)
OAKTECH Ltd
Original Assignee
OAKTECH Ltd
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Filing date
Publication date
Application filed by OAKTECH Ltd filed Critical OAKTECH Ltd
Priority to GB0902204A priority Critical patent/GB2467736A/en
Publication of GB0902204D0 publication Critical patent/GB0902204D0/en
Publication of GB2467736A publication Critical patent/GB2467736A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
    • B60W20/13—Controlling the power contribution of each of the prime movers to meet required power demand in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • 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
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
    • 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
    • B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • 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
    • B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
    • B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
    • 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
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/085—Changing the parameters of the control units, e.g. changing limit values, working points by control input
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B13/00—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion
    • G05B13/02—Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
    • 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
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • 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
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • B60W2050/143—Alarm means
    • 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
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/24—Energy storage means
    • B60W2510/242—Energy storage means for electrical energy
    • B60W2510/244—Charge state
    • 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
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • B60W2520/10—Longitudinal speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/10—Road Vehicles
    • B60Y2200/11—Passenger cars; Automobiles
    • B60Y2200/114—Racing vehicles, e.g. Formula one, Karts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Artificial Intelligence (AREA)
  • Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Evolutionary Computation (AREA)
  • Medical Informatics (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

A vehicle hybrid system that allows the driver to manually control the power flow to and from the hybrid's energy storage 7 device by controls 11, 12 operated from the steering wheel area 10. The hybrid drive system typically consists of a combustion engine 1, an energy conversion and transfer device 2 and a power transmission device 3. The transfer device 2 converts vehicle motion into energy that is then stored in an energy store 7. On demand the stored energy is used to help provide motion to the vehicle by providing power through the transfer device 2. This invention allows the driver, by means of manual control 11, 12, to over-ride the automatic energy flow control strategies embedded within the vehicle hybrid architecture and make decisions as to when and at what rate to load the generator to regenerate energy into the store, and when and at what rate to deploy this energy to power the vehicle.

Description

Introduction
This invention is applicable to any hybrid vehicle system that converts the kinetic energy carried by a vehicle into stored energy which can then be reused by the vehicle. This includes electric hybrids, mechanical hybrids using devices such as flywheels to store energy, and devices that use gas or fluids to store energy. The more common example of an electric hybrid is used to describe this invention.
Automotive hybrid systems combining combustion engines with electric motor/ generators are now a well-known and accepted technology. These systems, typified by the Honda IMA and Toyota HSD hybrids, have the potential to increase the efficiency of a vehicle by capturing kinetic energy that a traditional vehicle would waste and converting it to electrical energy and storing it, typically, in a dedicated battery. The hybrid system then releases this energy when demanded to an electric motor that assists with the powering of the vehicle.
It is often not fully appreciated that the same system can be used to increase the road performance of the vehicle as the regeneration of kinetic to electrical energy adds to the braking system of the vehicle whilst the electric motor provides a net increase in power to provide acceleration. Having the ability to optimise the characteristics of the electrical system in a hybnd vehicle gives the opportunity to exploit both the efficiency and performance potential inherent in the system.
The invention described here provides a solution for a vehicle requiring higher levels of performance and/or efficiency than is the norm for a current mass-market system. It allows the potential, within the limitations of the hardware embedded in the vehicle architecture, to capture much more of the vehicle's waste kinetic energy than a normal manufacturer's production system and therefore have more stored energy to aid the efficiency or performance of the vehicle. It also allows the driver more involvement in the control of the vehicle and an opportunity to exploit the potential held within the hybrid system to maximise vehicle energy efficiency.
The present invention is unique in that it allows the driver to make key decisions regarding the performance of the hybrid vehicle, and its ability to capture and reuse this energy resource, thereby allowing the development of driving techniques to optimise the performance and/or the efficiency of the vehicle whilst the drivers hands remain on or by the steering wheel.
Prior Art
A vehicle-specific device, that provides some of the solutions covered by this patent, was invented by Mike Dabrowski as an add-on control device for the first generation Honda Insight Hybrid, with the aim of improving the fuel efficiency potential of that car. This device, called MIMA, allows the vehicle owner a degree of manual control over the assist and regeneration of the standard Insight hybrid system, but is restricted in function and is not designed as an ergonomic driver aid. It is not applicable to vehicles other than the Honda Insight.
Description
This example shows a vehicle hybrid system consisting of (see diagram 1) * A Combustion Engine 1, one or more Electric Motor/Generators (EMG) 2, and a Power Transmission System 3 * An Engine Management System (EMS) 4 that controls the combustion engine * An Electrical Energy Store(EES) 7 consisting of batteries and/or capacitors and or other storage devices * An Electrical Energy Management Module (EEMM) 8 which manages the temperature and state of charge of the energy store, and its other inputs and outputs * A Motor/Generator Control Module (MGCM) 9 which communicates with the EEMM 8 and manages energy flows between it and the motor generator * A Motor/Generator Drive Module (MGDM) 5 which is controlled by the MGCM 9 and switches EMO 2 between the motor and generator functions * A DC/DC Converter 6 if an auxiliary lower voltage electrical system is needed * The left hand Electrical Manual Control Lever (EMCL) or switch 11 * The right hand Electrical Manual Control Lever (EMCL) or switch 12 The invention described here provides a means for the driver of a hybrid vehicle to determine how the hybrid system is used to recover kinetic energy otherwise wasted and how to deploy energy from the energy store to help power the vehicle.
Diagram A is a schematic showing the key components of the hybrid system described. The areas denoted Steering Control Area 10, and Electrical Manual Control Levers or switches (EMCL), 11 and 12, and the way the EMCL's 11 and 12 interface with the hybrid control system, in this example described as the MGCM 9, is the part of the hybrid system that is unique and critical to the successful implementation of this invention.
This facility for driver control is provided in this embodiment by a system incorporating EMCLI1 and 12, fitted to the area around or fixed to the steering column or steering wheel so as to be easily accessible by the driver. By applying force or pressure to these EMCL's 11 and 12, the driver can control the amount of energy recovery or the amount of electric motor power within the defined limitations of the vehicle hybrid system. EMCL's 11 & 12 provide an information signal to instruct the MGCM 9 of the demands of the driver.
Operation of the EMCL's 11 & 12 can completely or partially over-ride the automatic control strategies programmed into the vehicle system. The preferred embodiment of this invention includes a lever or switch, EMCL 11, operated by the driver's left hand that controls one function and a lever or switch EMCL 12, operated by the driver's right hand that controls the other function. As an example the system can be configured whereby the EMCL 12, controls the power assist function and the EMCL 11, controls the energy recovery function. The variable levels of power assist and energy recovery are controlled by the percentage of use of the range of movement or by the amount of pressure applied to the EMCL's 11 & 12. Safety parameters will be embedded in the MGCM to over-ride the manual control to prevent unsafe use or damage to the hybrid system.
In a typical hybrid vehicle the drive control strategy will apply electrical drive assist from the EMG 2 when the combustion engine 1 is under acceleration or drive load, and will provide electrical regeneration to charge the EES 7 when the vehicle is required to slow down.
An embodiment of this invention will allow the driver to vary the speed of the vehicle and provide charge from the generator, by manually applying charging load using the lever or switch, shown as EMCL 11 in the example given, when Combustion Engine I is applying drive or acceleration load.
An embodiment of this invention will use a single EMCL that can serve the function of both EMCL 11 and EMCL 12 as described above. Pressure or movement applied in one direction to this EMCL will control power assist and pressure or movement applied in the opposite direction will control energy recovery. Uses
This invention would have a particular use in sporting cars, specialist and niche market vehicles, vehicles that need to achieve very high fuel efficiency and/or low emissions, racing vehicles and for the enthusiast driver who demands a higher level of control over the vehicle.
A hybrid vehicle using this manual control system gives the driver real time control over the energy recovery, storage and use, thereby allowing the hybrid system to be operated for maximum effect. The driver can choose to use maximum power assist when the combustion engine would be at its least fuel efficient, for example climbing a hill, and seek regeneration opportunities such as braking or descending hills to achieve maximum energy recovery. In a performance hybrid vehicle, such as a racing car, the driver can trim the speed of the vehicle by activating the energy recovery system and at the same time recovering energy to the store.

Claims (7)

  1. THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVEPROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS1. A vehicle hybrid power system including a combustion engine, an energy conversion and transfer device, a power transmission system and an energy storage device, governed by a flexible microprocessor based control architecture that allows the driver to control the timing, rate and amount of energy flow between the energy conversion and transfer device and the energy storage device by using manually operated controls that provide messages to the vehicle hybrid control system, and are positioned so as to be accessible in the steering area, or mounted on the steering wheel or on the steering column, and provides the facility to alter working control strategies of the hybrid system to allow the vehicle performance and/or efficiency to be changed or optimised by the driver in real time.
  2. 2. A vehicle hybrid power system including a combustion engine, an electric motor/generator, a transmission system and an electrical energy store, governed by a flexible microprocessor based control architecture that allows the driver to control the timing, rate and amount of electrical energy flow between the electric motor/generator and the electrical energy store by using manually operated controls that communicate with the vehicle hybrid control system, and are positioned so as to be accessible in the steering area, or mounted on the steering wheel or on the steering column, and provide the facility to alter working control strategies of the hybrid system to allow the vehicle performance and/or efficiency to be changed or optimised by the driver in real time.
  3. 3. A vehicle hybrid system as described in claims 1& 2 that allows the driver to manually control the energy transfer to and from the energy store, and at the same time over-ride any automatic control built into the vehicle control system.
  4. 4. A vehicle hybrid system as described in claim 3 that allows the driver to manually control the amount of energy that the vehicle recovers and transfers to the energy store, and thereby use this for control of the speed or retardation of the vehicle.
  5. 5. A vehicle hybrid system as described in claim 4 that allows the driver to manually control the amount of energy transferring from the energy store to power assist the vehicle, and thereby use this for control of the speed or acceleration of the vehicle by.
  6. 6. A vehicle hybrid system as described in claim 5 that allows the driver to manually control the energy transfer to and from the energy store, that allows the driver to control energy recovery when the vehicle combustion engine is under load and producing power, thereby allowing the driver to control or reduce the speed of the vehicle by applying load to the energy recovery system.
  7. 7. A vehicle hybrid system as defined in Claims 1 and 2 including any or all of those features described in Claims 3 to 6.
GB0902204A 2009-02-11 2009-02-11 Driver Control Aid For Vehicle Hybrid Systems Withdrawn GB2467736A (en)

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Application Number Priority Date Filing Date Title
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GB2467736A true GB2467736A (en) 2010-08-18

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2344799A (en) * 1998-12-16 2000-06-21 Rover Group A motor vehicle braking system
US20080042489A1 (en) * 2006-08-17 2008-02-21 Lewis Donald J Driver Feedback to Improve Vehicle Performance

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2344799A (en) * 1998-12-16 2000-06-21 Rover Group A motor vehicle braking system
US20080042489A1 (en) * 2006-08-17 2008-02-21 Lewis Donald J Driver Feedback to Improve Vehicle Performance

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