METHOD OF CONTROLLING AN ENERGY STORAGE UNIT IN A VEHICLE MICRO-HYBRID SYSTEM
First Claim
1. Method of controlling a supercapacitor energy storage unit (12) included in a motor vehicle micro-hybrid system suitable for performing the functions of an alternator, starter and automatic stop-restart of the vehicle heat engine, regenerative braking and torque assistance, said energy storage unit (12) comprising a plurality of supercapacitor elementary cells connected in series (C1 to C10) and delivering information (Vmax, Temp and DeltaV) on its internal status, characterised in that it comprises the steps of:
- comparing temperature (Temp) information, as said information is delivered by said energy storage unit (12), with at least one temperature threshold anddeciding on a limitation of the availability of said functions when said temperature (Temp) information reaches said at least one temperature threshold.
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Abstract
A method of controlling a supercapacitor energy storage unit (12), included in a motor vehicle micro-hybrid system, is disclosed. The storage unit is suitable for performing the functions of an alternator, starter and automatic stop-restart of the vehicle heat engine, regenerative braking and torque assistance. The energy storage unit (12) is a plurality of supercapacitor elementary cells connected in series (C1 to C10) and capable of delivering information (Vmax, Temp and DeltaV) on its internal status. The method includes various stages of: comparing a temperature (Temp) with at least one temperature threshold (ST1=55° C., ST2=65° C. and ST3=70° C.); and, deciding on limitations of the availability of functions of the unit when the (Temp) information reaches the temperature threshold (ST1=55° C., ST2=65° C. and ST3=70° C.).
21 Citations
10 Claims
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1. Method of controlling a supercapacitor energy storage unit (12) included in a motor vehicle micro-hybrid system suitable for performing the functions of an alternator, starter and automatic stop-restart of the vehicle heat engine, regenerative braking and torque assistance, said energy storage unit (12) comprising a plurality of supercapacitor elementary cells connected in series (C1 to C10) and delivering information (Vmax, Temp and DeltaV) on its internal status, characterised in that it comprises the steps of:
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comparing temperature (Temp) information, as said information is delivered by said energy storage unit (12), with at least one temperature threshold and deciding on a limitation of the availability of said functions when said temperature (Temp) information reaches said at least one temperature threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. Motor vehicle micro-hybrid system comprising:
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an energy storage unit (12) having a plurality of supercapacitor elementary cells connected in series (C1 to C10) and delivering information (Vmax, Temp and DeltaV) on its internal status, characterised in that the said energy storage unit (12) comprises means (141) suitable for comparing temperature (Temp) information, as said information is delivered by said energy storage unit (12), with at least one temperature threshold, and deciding on a limitation of the availability of said functions when said temperature (Temp) information reaches said at least one temperature threshold.
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Specification