EP4555501A1 - Procédé et système de commande d'un véhicule automobile hybride en fonction des feux de signalisation - Google Patents
Procédé et système de commande d'un véhicule automobile hybride en fonction des feux de signalisationInfo
- Publication number
- EP4555501A1 EP4555501A1 EP23733278.8A EP23733278A EP4555501A1 EP 4555501 A1 EP4555501 A1 EP 4555501A1 EP 23733278 A EP23733278 A EP 23733278A EP 4555501 A1 EP4555501 A1 EP 4555501A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- traffic light
- signal
- vehicle
- duration
- computer
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
-
- 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
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
- B60W30/18127—Regenerative braking
-
- 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
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18154—Approaching an intersection
-
- 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
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18159—Traversing an intersection
-
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
- G08G1/096716—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information does not generate an automatic action on the vehicle control
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
- G08G1/096783—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission where the origin of the information is a roadside individual element
Definitions
- TITLE Method and system for controlling a hybrid motor vehicle based on traffic lights
- the technical field of the invention is the control of motor vehicles, and in particular, the control of such vehicles equipped with a hybrid powertrain.
- the route, the speed profile and the power demand at the wheel make it possible to best optimize overall consumption.
- the hybrid supervisor controls the combustion engine and the electric motor(s) as a couple, as well as stopping and starting the combustion engine.
- This document is applicable to any vehicle with an automated gearbox, with the aim of avoiding unnecessary excess fuel consumption linked to driver behavior. However, it does not describe the application to a hybrid vehicle and the taking into account of several driving sources.
- the object of the invention is a method of controlling a motor vehicle equipped with a hybrid powertrain comprising a heat engine and at least one electric machine, governed by a predetermined energy management law and the vehicle comprising by elsewhere a computer, a man-machine interface for displaying information to the driver and means of communication with at least one traffic light, the method comprising the following steps: the computer receives information from a traffic light, the computer determines the distance from the traffic light, the active signal displayed by the traffic light among a first signal associated with a crossing authorization and a second signal associated with a crossing prohibition, and a duration until the signal change of the traffic light in function of said information received, the calculator compares the duration until the signal change of the traffic light with a duration for crossing the distance to the traffic light, the calculator temporarily modifies the energy management law according to the result of the comparison and sends an indication to the driver of at least one action to be carried out, consistent with said modification of the energy management law, of so as to limit the energy spent until crossing the traffic light.
- the computer can temporarily modify the energy management law to adapt the regenerative braking as a function of the distance to the traffic light, and the computer can send a indication to the driver to release the accelerator pedal.
- the computer can temporarily modify the management law energy so as to maintain the required wheel speed, preferably in all-electric mode, and the computer can send an indication to the driver to maintain at least the current speed of the vehicle.
- the computer can temporarily modify the energy management law so that the heat engine is started, if it was stopped, and kept running until when crossing the traffic light in order to provide additional power, and the computer can send an indication to the driver of the maximum authorized speed to be reached.
- the computer can temporarily modify the energy management law so as to force an all-electric operating mode to carry out regenerative braking, and the computer can send an indication to the driver to release the accelerator pedal.
- the computer may not change the law energy management and, the computer can send an indication to the driver to keep the speed of the vehicle unchanged, so that the vehicle crosses the traffic light while it will display the first signal, after a change from the second signal.
- the computer can modify the law of energy management so as to force an all-electric mode and adapts regenerative braking and, the computer can send an indication to the driver of a recommended speed and to release the accelerator pedal, so as to minimize the expense of energy because the vehicle will reach the traffic light while it will display the second signal, before a signal change.
- the computer can delete the indications to the driver and the temporary modification of the energy management law ends.
- the computer can temporarily modify the energy management law when passing a first traffic light in order to force a discharge of the battery to maintain the possibility to perform regenerative braking when passing the following traffic lights.
- the invention also aims to provide a control system for a motor vehicle equipped with a hybrid powertrain with a man-machine interface for displaying information on the driver, means of communication with at least one traffic light and control means configured to carry out the control method as described above.
- An advantage of the method and the control system lies in the reduction of the energy consumption of hybrid vehicles in an urban environment, when knowledge of traffic light changes is available.
- the powertrain management law makes it possible to optimize energy consumption by knowing the actions to be carried out in the near future as well as the associated power demand.
- FIG 1 illustrates the main stages of a control method according to the invention.
- a first state corresponds to an authorized passage. In most countries, this state corresponds to a green light.
- a second state corresponds to a mandatory stop. In most countries, this state corresponds to a red light.
- T cc the duration until the signal change
- V pnn vehicle speed
- Vi im the maximum speed authorized on the road used
- T Vego D l ⁇ ego: the duration to cover the distance to the traffic light D at the current speed of the vehicle
- V ego the duration to cover the distance to traffic light D at the maximum authorized speed Vi im .
- Tf m the time required for the vehicle to cover the distance to traffic light D using the engine brake.
- Tsaiiing the time required for the vehicle to cover the distance to the traffic light D while freewheeling (so-called “sailing” mode in English).
- Hybrid powertrain status changes based on driver input via the accelerator pedal, vehicle speed and battery status.
- the method of controlling a hybrid motor vehicle equipped with a hybrid powertrain comprising a heat engine and at least one electric machine is carried out via an on-board computer comprising a memory and a processor configured to execute the steps described below.
- the hybrid powertrain includes several operating modes.
- a first mode of operation only the electrical machines generate torque at the wheel.
- the heat engine does not participate.
- the thermal engine is systematically cut off.
- the heat engine and the electric machines In a second mode of operation, the heat engine and the electric machines generate a torque to the wheel depending in particular on the driver's request, the power that can be generated by each component, the fuel available, the state of charge of the battery traction, in a manner known to the state of the art.
- the electric machines can be driving to provide additional power to the wheels or, on the contrary, as a generator to recharge the batteries.
- the heat engine is the only one to provide torque to the wheel. This is particularly the case when the traction battery has a state of charge that is too low to power the electrical machines. A too low state of charge of the battery can also result from the optimization of energy on board the vehicle.
- the control method is illustrated in Figure [Fig 1] and includes a first step 1 of determining information relating to the traffic lights. This information is acquired via vehicle-to-infrastructure V2I communication (“vehicle to infrastructure”, in English).
- the state of a traffic light includes its current state (the color of the light) Ef and the time remaining before the next change of state of the traffic light T cc .
- the geographical position of the traffic light, and the lanes controlled may also be part of the status of a traffic light. The position of the light and the lane involved are given to calculate the distance to the vehicle and whether the vehicle is affected by the lane it is taking.
- the information to be taken into account is determined as a function of the distance between the vehicle and each traffic light, as a function of the planned trajectory over a predetermined time horizon T, for example 15 s .
- the probable trajectory is taken into account as a function of the direction of travel, and the signaling plan around the motor vehicle.
- the active signal displayed by the first traffic light on the path of the vehicle is determined.
- the process continues with a third step 3. It is estimated that at the speed current V eg0 , the vehicle will cross the traffic light while it will display a first signal, before a change to a second signal. We then maintain the speed vehicle unchanged. We modify the law of energy management so as to maintain the speed and power necessary for the wheels. If all-electric operation meets this requirement, the heat engine is not started.
- the driver is told to maintain his speed.
- the process continues with a fourth step 4.
- the vehicle will reach the traffic light when it will display a second signal.
- the vehicle will cross the traffic light while it will display a first signal, before changing to a second signal.
- the all-electric mode of operation may be insufficient. We then modify the energy management law in order to start the heat engine to provide additional power. The energy management law is also amended to prohibit the shutdown of the heat engine.
- the driver is told the speed to reach.
- the driver is then told to release the accelerator pedal. If the traction battery is not fully charged, the energy management law is modified so that the all-electric operating mode is forced, to carry out regenerative braking.
- the traffic light displays a second signal and will display a first signal over the duration until the signal change T cc , and if T cc ⁇ the process continues with a sixth step 6.
- T cc the signal change
- Hybrid mode engaged thermal engine start and maintained mode (no action on clutch, gearbox, etc.) no change in the state of the traction chain.
- the process continues with a seventh step 7. It is estimated that 'at the current speed, the vehicle will reach the traffic light while it will display a second signal, before a signal change. On the other hand, by switching to freewheel mode (“sailing” in English), the vehicle will cross the traffic light while it will display a first signal, after a change of signal.
- the vehicle is controlled so that it moves in freewheel mode. In other words, if it was active, the injection is cut off and the vehicle only moves under the effect of its own inertia and is only slowed down by aerodynamic drag, tire resistance and resistance. stance when rolling the vehicle. The driver is told to let go of the pedal accelerator. When freewheeling on a hybrid vehicle, we turn off the thermal engine and if possible we uncouple the electric machine(s) to limit losses.
- the energy management law is modified so that the all-electric operating mode is forced, the thermal engine then being stopped.
- the energy management law is also modified so as to adapt regenerative braking to reach the set speed. Finally, when the traction battery is too discharged and the stopping phase of the combustion engine is too short, then it is kept at idle.
- the driver is told a recommended speed and to release the accelerator pedal.
- the energy management law is being modified to require the vehicle to operate in all-electric mode in order to benefit from regenerative braking.
- the mechanical brake is then used in addition.
- the process ends during a ninth step 9 when crossing the traffic light, during which the information displayed to the driver is deleted and all operating modes of the vehicle are authorized. hybrid powertrain. The process then resumes at the first step 1 by considering the next traffic light.
- the energy management law can be modified when a first traffic light passes. signaling in order to force a discharge of the battery to maintain the possibility of carrying out regenerative braking when passing the next traffic lights.
Landscapes
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Human Computer Interaction (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2207196A FR3137993B1 (fr) | 2022-07-13 | 2022-07-13 | Procédé et système de commande d’un véhicule automobile hybride en fonction des feux de signalisation |
| PCT/EP2023/065982 WO2024012796A1 (fr) | 2022-07-13 | 2023-06-14 | Procédé et système de commande d'un véhicule automobile hybride en fonction des feux de signalisation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4555501A1 true EP4555501A1 (fr) | 2025-05-21 |
Family
ID=83355096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23733278.8A Pending EP4555501A1 (fr) | 2022-07-13 | 2023-06-14 | Procédé et système de commande d'un véhicule automobile hybride en fonction des feux de signalisation |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4555501A1 (fr) |
| CN (1) | CN119908002A (fr) |
| FR (1) | FR3137993B1 (fr) |
| WO (1) | WO2024012796A1 (fr) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE361950B (fr) | 1970-07-16 | 1973-11-19 | Helge Meuller Ab | |
| FR2863953B1 (fr) * | 2003-12-23 | 2006-05-05 | Renault Sas | Procede et systeme de commande de vehicule a motorisation hybride |
| FR2923438B1 (fr) * | 2007-11-12 | 2010-03-12 | Renault Sas | Procede et systeme de gestion du fonctionnement d'un vehicule automobile en fonction de conditions de roulage |
| US8855844B2 (en) * | 2011-10-11 | 2014-10-07 | Robert Bosch Gmbh | System and method for optimal deceleration of a vehicle using regenerative braking |
| JP6237701B2 (ja) * | 2015-05-29 | 2017-11-29 | 三菱自動車工業株式会社 | 車両用運転制御装置 |
| US11820255B2 (en) * | 2020-02-03 | 2023-11-21 | Nio Technology (Anhui) Co., Ltd. | Predictive regenerative braking |
-
2022
- 2022-07-13 FR FR2207196A patent/FR3137993B1/fr active Active
-
2023
- 2023-06-14 EP EP23733278.8A patent/EP4555501A1/fr active Pending
- 2023-06-14 WO PCT/EP2023/065982 patent/WO2024012796A1/fr not_active Ceased
- 2023-06-14 CN CN202380065214.4A patent/CN119908002A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR3137993A1 (fr) | 2024-01-19 |
| FR3137993B1 (fr) | 2025-02-07 |
| WO2024012796A1 (fr) | 2024-01-18 |
| CN119908002A (zh) | 2025-04-29 |
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Legal Events
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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Effective date: 20250211 |
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Owner name: HORSE POWERTRAIN SOLUTIONS, S.L.U. |