Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
  • F02N11/00—Starting of engines by means of electric motors
  • F02N11/08—Circuits or control means specially adapted for starting of engines
  • F02N11/0803—Circuits or control means specially adapted for starting of engines characterised by means for initiating engine start or stop
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
  • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
  • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
  • B66F9/075—Constructional features or details
  • B66F9/20—Means for actuating or controlling masts, platforms, or forks
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
  • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
  • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
  • B66F9/075—Constructional features or details
  • B66F9/20—Means for actuating or controlling masts, platforms, or forks
  • B66F9/22—Hydraulic devices or systems
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02D—CONTROLLING COMBUSTION ENGINES
  • F02D41/00—Electrical control of supply of combustible mixture or its constituents
  • F02D41/02—Circuit arrangements for generating control signals
  • F02D41/04—Introducing corrections for particular operating conditions
  • F02D41/042—Introducing corrections for particular operating conditions for stopping the engine
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02D—CONTROLLING COMBUSTION ENGINES
  • F02D41/00—Electrical control of supply of combustible mixture or its constituents
  • F02D41/02—Circuit arrangements for generating control signals
  • F02D41/04—Introducing corrections for particular operating conditions
  • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
  • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
  • F02D41/064—Introducing corrections for particular operating conditions for engine starting or warming up for starting at cold start
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02D—CONTROLLING COMBUSTION ENGINES
  • F02D41/00—Electrical control of supply of combustible mixture or its constituents
  • F02D41/02—Circuit arrangements for generating control signals
  • F02D41/04—Introducing corrections for particular operating conditions
  • F02D41/06—Introducing corrections for particular operating conditions for engine starting or warming up
  • F02D41/062—Introducing corrections for particular operating conditions for engine starting or warming up for starting
  • F02D41/065—Introducing corrections for particular operating conditions for engine starting or warming up for starting at hot start or restart
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02D—CONTROLLING COMBUSTION ENGINES
  • F02D41/00—Electrical control of supply of combustible mixture or its constituents
  • F02D41/22—Safety or indicating devices for abnormal conditions
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02D—CONTROLLING COMBUSTION ENGINES
  • F02D41/00—Electrical control of supply of combustible mixture or its constituents
  • F02D41/24—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
  • F02D41/26—Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means using computer, e.g. microprocessor
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
  • F02N11/00—Starting of engines by means of electric motors
  • F02N11/08—Circuits or control means specially adapted for starting of engines
  • F02N11/0862—Circuits or control means specially adapted for starting of engines characterised by the electrical power supply means, e.g. battery
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
  • F02N7/00—Starting apparatus having fluid-driven auxiliary engines or apparatus
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
  • F02N7/00—Starting apparatus having fluid-driven auxiliary engines or apparatus
  • F02N7/10—Starting apparatus having fluid-driven auxiliary engines or apparatus characterised by using auxiliary engines or apparatus of combustion 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
  • B60K6/08—Prime-movers comprising combustion engines and mechanical or fluid energy storing means
  • B60K6/12—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable fluidic accumulator
  • B60K2006/126—Prime-movers comprising combustion engines and mechanical or fluid energy storing means by means of a chargeable fluidic accumulator the hydraulic accumulator starts the engine
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02D—CONTROLLING COMBUSTION ENGINES
  • F02D2200/00—Input parameters for engine control
  • F02D2200/60—Input parameters for engine control said parameters being related to the driver demands or status
  • F02D2200/602—Pedal position
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
  • F02N11/00—Starting of engines by means of electric motors
  • F02N11/08—Circuits or control means specially adapted for starting of engines
  • F02N11/0814—Circuits or control means specially adapted for starting of engines comprising means for controlling automatic idle-start-stop
  • F02N11/0818—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode
  • F02N11/0825—Conditions for starting or stopping the engine or for deactivating the idle-start-stop mode related to prevention of engine restart failure, e.g. disabling automatic stop at low battery state

Definitions

• the invention relates to a method for starting and stopping an internal combustion engine of a handling trolley, said trolley comprising an electric starter and an auxiliary hydraulic starter.
• the invention is particularly useful for controlling the starting or stopping of an internal combustion engine of an off-road forklift, a forklift, a personnel lift and any other truck having an automatic shutdown and automatic restart of an internal combustion engine.
• US 2007/0095321 A1 discloses a method of assisting start-up of a public works machine comprising a battery assembly and a main motor, the method comprising starting an auxiliary power unit, using the electrical power generated by the auxiliary power unit for conditioning the battery assembly, and adding the electrical power generated by the auxiliary power unit to the electrical power generated by the battery assembly for an engine start event main.
• the start assisting method of US 2007/0095321 A1 is satisfactory, but does not remedy a deterioration of the battery assembly preventing starting of the main engine.
• a self-propelled load handler or person lift truck with at least one handling actuator and a device for automatically stopping and restarting an internal combustion engine may advantageously comprise a hydraulic motor forming a starter and a reserve of Hydro-electric power.
• the hydraulic power reserve drives the starter hydraulic motor to start the internal combustion engine.
• the self-propelled handling truck advantageously comprises an electronic calculator for automatic shutdown management and automatic restart of the internal combustion engine on the solicitation of a motion control or a handling actuator.
• the stop management electronic calculator Automatic and automatic restart of internal combustion engine is preferably a programmable computer containing a management program automatic shutdown and automatic restart of the internal combustion engine.
• This type of industrial truck generally comprises a cabin with a seat for an operator and multi-function manual control, movement and handling means. Foot control means, such as brakes or an accelerator, are also provided for modulating the transmission of the movement to the wheels or to the advancing tracks of the industrial truck.
• the mobility functions of the industrial truck are activated when the operator acts on a manual control device, for example a three position stable changeover button to control the truck in forward direction, stop it in the neutral position or control it in operation. back.
• a staged shift control of the gearbox can also be provided for the controlled advancement of the truck, preferably by speed control under load.
• a dashboard illustrates the real-time operation of the industrial truck and provides visual, vocal or acoustic indications to the operator to warn him of critical positions or situations.
• the internal combustion engine of the industrial truck is associated with an electric starter powered by an electric battery.
• the industrial truck has an auxiliary starter, which is a hydraulic starter.
• This arrangement may comprise a hydropneumatic accumulator connected to a hydraulic motor forming a starter via an electrically controlled hydraulic valve.
• An electropump may be provided to recharge the hydropneumatic accumulator, in case of insufficient pressure of the hydropneumatic accumulator.
• a hydraulic reservoir is advantageously provided to allow the electric pump to send oil under pressure to recharge the hydropneumatic accumulator, and to depressurize the electropump before performing a pressurization step. Thanks to the compactness of hydraulic starter motors, the powertrain of a truck with an electric starter and a hydraulic starter has a size close to the powertrain comprising only an electric starter.
• a first object of the invention is to provide a method for starting and stopping an internal combustion engine of this kind of industrial truck, allowing safe operation, and improved reliability.
• a second object of the invention is to provide a new method for starting and stopping an internal combustion engine of this kind of industrial truck, which avoids the risk of hardware failure and the risk of personnel accident.
• the invention relates to a method for starting and stopping an internal combustion engine of a industrial truck, said truck comprising an electric starter and an auxiliary hydraulic starter, characterized in that the starting method of an internal combustion engine includes steps for testing safety conditions, detecting instructions or operator requests, and testing auxiliary startup conditions.
• the method of stopping an internal combustion engine comprises a step of testing the stopping conditions of the internal combustion engine.
• the step of testing the auxiliary starting conditions of the internal combustion engine comprises a pressure test of the hydropneumatic accumulator.
• the step of testing the auxiliary starting conditions of an internal combustion engine may comprise a temperature test of the internal combustion engine.
• the test stage of the internal combustion engine auxiliary start conditions may include a time interval test since the last stop of the internal combustion engine.
• the step of testing the stopping conditions of internal combustion engine may include a test of absence of activity or absence of operating demand of the industrial truck.
• the step of testing the stopping conditions of the internal combustion engine comprises a pressure test of the hydraulic accumulator.
• the step of testing the stopping conditions of an internal combustion engine may include a temperature test of the internal combustion engine.
• the step of testing the stopping conditions of the internal combustion engine may include a time interval test since the last start of the internal combustion engine.
• the step of testing the stopping conditions of the internal combustion engine may include a test of the state of the electric battery supplying the electric starter.
• the step of detecting instructions or requests from the operator may include a detection of an action of the operator on a manual control device or control at the foot of the truck.
• FIG. 1 diagrammatically represents a flowchart of a start-up management or restarting method of an internal combustion engine of industrial truck according to the invention.
• FIG. 2 diagrammatically represents a flowchart of a process for stopping an internal combustion engine of a industrial truck according to the invention.
• FIG. 3 diagrammatically represents a flowchart for managing an electric pump for recharging a feed accumulator of a hydraulic starter for an internal combustion engine of industrial truck according to the invention.
• a flow chart for the start-up or restart management of an internal combustion engine of a industrial truck according to the invention comprises steps 100 to 122.
• the starting situation corresponds to a stopped internal combustion engine, with auxiliary hydraulic start option activated, after putting the electrical circuit into contact.
• the industrial truck to which the starting or restarting process is applied is provided with a visual indication to the operator of the standby of the auxiliary hydraulic start.
• the indication that the auxiliary hydraulic starting system is activated in standby is advantageously provided by an intermittent ignition of emergency stop lights, avoiding the use of a high power consumption.
• the emergency stop lights can be activated for a short time, every twenty seconds, so as to minimize the power consumption required for this standby indication of the machine.
• an indicator on the dashboard of the industrial truck shows the activation of the auxiliary hydraulic start.
• a first test is performed in step 100, to check if the speed of the motor is less than a predetermined value, for example at 550 rpm.
• step 100 If the test carried out in step 100 is negative, it means that the engine is stopped and it returns to the initial state of engine corresponding to a stopped internal combustion engine, with hydraulic start option activated, after putting in contact of the electrical circuit.
• step 100 If the test carried out in step 100 is positive, it means that the engine is actually running, and it arrives directly to the engine final state started with the auxiliary starting system available, but inactivated.
• step 101 it is checked whether the motor is off for a predetermined time, for example of the order of one hour. If the test carried out in step 101 is positive, the industrial truck is placed in the minimum power consumption mode, by activating a mode 114 for saving the electric battery.
• step 101 If the test performed in step 101 is negative, it returns to the initial state of stopped engine with auxiliary start system in standby.
• step 102 an electric battery level test is performed to see if the battery is low.
• step 102 If the test of step 102 is positive, it proceeds to step 109 of the operator warning by display on the dashboard and emission of two light bursts of alarm at remote intervals, for example of the order ten minutes.
• step 103 If the battery level is low, it goes to step 103 of testing the security conditions.
• step 103 a multiple test of security conditions is performed.
• the safety conditions tested in step 103 comprise at least the activation test stages of the auxiliary start function, the engine hood closing test, the closing test of the cabin door of the industrial truck, verification of non-functioning of the engine, checking of any possible safety faults on a computer, or of all the faults resulting from an emergency stop commitment, and checking that the engine has been stopped since more than two seconds.
• step 103 of the safety conditions If the multiple test of step 103 of the safety conditions is negative, it returns to the initial state of stopped engine with auxiliary system of standby start.
• step 103 of the security conditions If the multiple test of step 103 of the security conditions is positive, proceed to step 104 of the request test of an operator.
• step 104 the conditions of application of an operator by action on a member of the industrial truck are tested.
• the conditions for detecting requests or instructions from a user or operator at step 104 may include, but not be limited to, one of the following checks: verification of a hydraulic activation of an actuator of the industrial truck, via the control panel, or an operating lever, or other control device of the industrial truck, in particular the operating demands of a lifting actuator, an actuator a telescoping actuator, a stall or dump actuator, an output actuator or retracting lateral stabilizers, or an auxiliary energy demand actuator by the trolley.
• These conditions for detecting requests or instructions from a user or an operator at step 104 may alternatively consist of a request for ramping up by pressing on an accelerator pedal, or alternatively a request for advancement or reverse by activating the motion transmission of the industrial truck.
• step 104 If the test carried out in step 104 is negative, that is to say that no instruction or operator request has been detected, it returns to step 103 of safety conditions tests. If an operator instruction is detected in step 104, proceed to step 105 of checking the auxiliary hydraulic start conditions.
• step 105 the possibilities of auxiliary starting, in particular hydraulic starting of the internal combustion engine of the industrial truck, are tested. This test is particularly indicated in the case of a hydraulic start using a hydraulic accumulator driving a hydraulic starter.
• the hydraulic start condition tests of step 105 include at least the following conditions: checking that the pressure in the hydraulic accumulator is greater than a predetermined value, for example 180 bar; checking that the temperature of the internal combustion engine is above a predetermined value, for example at 60 ° C; checking that the internal combustion engine has been stopped for less than one hour; checking that the internal combustion engine has not been running for more than three seconds.
• step 105 If the test of the auxiliary start conditions of step 105 is negative, electrical starting step 117 is started by an electric starter of known type. If the test of the auxiliary start conditions of the step 105 is positive, proceed to the step 106 of the auxiliary start, then to the step 107 of verification of the auxiliary start.
• the success of the auxiliary start is tested, in particular it is tested whether the speed of the motor exceeds 550 revolutions per minute after a start time greater than a predetermined value, for example at 3 seconds.
• step 107 If the test of step 107 is positive, then one arrives at step 108 of stopping the hydraulic start, by stopping the discharge of the hydraulic accumulator and by freewheeling of the hydraulic starter.
• step 107 If the test of step 107 is negative, it arrives at a step 115 of fault finding of the hydraulic start, it blocks the discharge of the hydraulic accumulator and is put the hydraulic starter coasting.
• step 116 it is checked whether the engine speed corresponds to zero speed and two hydraulic starting tests are performed again.
• a fault indication step 110 is carried out on the truck control panel; and we go to a step 117 of electric start to start the industrial truck according to the invention by an electric starter of known type.
• this fault indication step 110 on the control panel of the truck with a motor stopped the indication that the auxiliary system is in standby and, if not incidentally, the indication of low battery if it was present.
• step 117 of electric start After step 117 of electric start, then at step 118 of verification of the electric start.
• step 118 of verification of the electric start the success of the electric start is tested, in particular it is tested whether the speed of the motor exceeds 550 revolutions per minute after a start time greater than a predetermined value, for example at 5 seconds. If the test of step 118 is positive, it then arrives at step 119 of stopping the electric start, by stopping the electric starter.
• step 120 of electrical starter fault finding is started and the power supply of the starter coil of the electric starter is cut off.
• step 121 it is tested whether the speed of the internal combustion engine is zero.
• step 121 If the speed of the internal combustion engine is found to be zero in step 121, proceed to step 122 of securing the industrial truck with stopping of the start function.
• step 121 If the test of step 121 indicates, on the contrary, that the speed of the internal combustion engine is not zero, it returns to step 120 of power failure of the electric starter coil to avoid damaging the starter. electric.
• the security condition tests of step 103, the detection tests of an operator setpoint in step 104 and the tests for detecting the auxiliary start conditions at step 105 allow safe operation of a industrial truck, to move from a stopped engine stage with standby auxiliary system to standby and available to a start engine state with auxiliary system start up standby and not activated.
• step 200 a test is made of the rotation speed of the internal combustion engine to check if this speed is zero. If the speed is zero, it goes directly to the engine stopped state with auxiliary system start in standby.
• step 201 carries out a test of the stopping conditions of the internal combustion engine.
• the stopping conditions of step 201 comprise at least the following conditions: verification of the activation of the auxiliary start function; checking the transmission neutral; checking the absence of regeneration in progress of a particulate filter of the internal combustion engine; verification of the absence of operator instructions; checking the absence of movement of the vehicle, in advance or retreat, control or displacement of a hydraulic actuator, for more than a predetermined duration of about thirty seconds; checking the pressurization of the hydraulic accumulator above a predetermined pressure, for example of the order of 180 bar; checking the start of the engine for more than a predetermined time, for example of the order of two minutes; checking the temperature rise of the cooling circuit of the heat engine, with a temperature between a lower limit, for example 65 ° C and an upper limit, for example 100 ° C; checking the state of charge and the state of health of the electric battery to allow two consecutive electric starts.
• step 201 If the test performed in step 201 is negative, it returns to the engine start with standby auxiliary system standby and not activated.
• step 201 If this test carried out in step 201 is positive, a stop control step 202 of the internal combustion engine is stopped by stopping the fuel supply of the internal combustion engine.
• step 203 After stopping the motor supply in step 202, by control using the control bus of the industrial truck according to the invention, a test is carried out in step 203 to verify that the speed of the motor to internal combustion is zero.
• step 203 If the speed tested in step 203 is not zero, it returns to step 202 stopping control of the internal combustion engine by stopping the fuel supply of the internal combustion engine.
• step 203 If the speed tested in step 203 is zero, it goes to the engine stopped with standby auxiliary system standby.
• FIG. 3 a flowchart of control software for an electric pump for recharging a hydraulic accumulator of the industrial truck according to the invention is shown.
• the starting step 300 corresponds to the stopping of the charging electropump.
• step 300 corresponding to the shutdown of the electric pump, it goes to a step 301 for testing the driving conditions of the electropump.
• These multi-condition tests necessarily include the verification of the absence of a fault on the electric pump, the verification of a pressure of the hydraulic accumulator lower than a predetermined value, for example of the order of 180 bars, and a verification of activation of the auxiliary hydraulic start function.
• These conditions are also subject to verification of a stop of the internal combustion engine for more than one second and a check of a start of the internal combustion engine for more than three seconds, so as to avoid contradictory mechanical movements. .
• a step 302 of depressurizing the electric pump is carried out, by driving the electric pump and by connecting the electric pump with a low pressure space, for example with a pump. hydraulic tank.
• a timer step 303 is taken for a predetermined duration, for example of the order of one second.
• step 304 of pressurization by driving the electric pump and by bringing the electropump into contact with the hydraulic accumulator of the industrial truck according to the invention.
• step 305 is checked to increase the pressure of the hydraulic accumulator.
• the rise in pressure of the hydraulic accumulator is tested in step 305 by verifying that the pressure reached by the hydraulic accumulator is greater than 250 bars as soon as a predetermined pressurization time, for example of the order of 40, is reached. seconds. If the pressurization test step 305 is negative, it goes to the step 306 of fault finding of the electric pump and deactivation of the auxiliary start function.
• step 305 If the test of step 305 is positive, it goes to step 307 stopping the control of the electric pump and memorizing a successful pressurization.
• step 308 is performed to check the memory of the pressurization tests. At step 308, it is tested whether the last three pressurizations have been positive and, if so, goes to step 300 of stopping the electric pump.
• step 309 is taken to indicate the pressure conservation fault indication by the accumulator and the auxiliary start function is deactivated.

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• Engineering & Computer Science (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• General Engineering & Computer Science (AREA)
• Structural Engineering (AREA)
• Transportation (AREA)
• Civil Engineering (AREA)
• Life Sciences & Earth Sciences (AREA)
• Geology (AREA)
• Computer Hardware Design (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
• Combined Controls Of Internal Combustion Engines (AREA)
• Testing Of Engines (AREA)

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• 2013
  • 2013-12-20 FR FR1363187A patent/FR3015580B1/fr active Active
• 2014
  • 2014-12-18 EP EP14830826.5A patent/EP3083482A1/de active Pending
  • 2014-12-18 WO PCT/FR2014/053425 patent/WO2015092297A1/fr active Application Filing
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