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Energy control system and method for a powertrain of a vehicle

A vehicle and energy control technology, applied in engine control, coolant flow control, electrical control, etc., to solve problems such as low efficiency of gasoline spark ignition engines

Active Publication Date: 2018-06-05
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The efficiency of gasoline spark ignition engines can be low at minimum combustion (i.e. minimum air and fuel levels) due to pumping losses and other factors
Making fuel unreachable is more efficient than reducing the amount of fuel reaching the ICE

Method used

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  • Energy control system and method for a powertrain of a vehicle
  • Energy control system and method for a powertrain of a vehicle
  • Energy control system and method for a powertrain of a vehicle

Examples

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Embodiment Construction

[0068] Embodiments disclosed herein include coordinated cooling system operation during (i) vehicle deceleration and / or reduced engine load events, (ii) regenerative braking events, and (iii) vehicle acceleration and / or increased engine load events. Coordinated control provides increased cooling during regenerative braking events and reduced cooling during vehicle acceleration and / or increased engine load events. As a result, fuel consumption is reduced during vehicle acceleration and / or increased engine load events, thereby providing increased fuel efficiency.

[0069] Conventional cooling systems reduce and / or turn off the cooling pump and / or cooling fan during regenerative braking. Embodiments disclosed herein include operating the cooling pump and the cooling fan in a wide open state during regenerative braking. The voltage of the cooling pump may be temporarily increased to a voltage (eg, 16V) higher than a predetermined voltage (eg, 12V) to provide increased cooling. T...

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PUM

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Abstract

A system includes a mode module and an energy module. The mode module generates a mode signal based on a temperature of an engine and at least one of a deceleration signal and a regenerative braking signal. The energy module, based on the mode signal, increases cooling of a coolant of the engine during at least one of a deceleration event of a vehicle and a regenerative braking event. The energy module, while increasing the cooling of the coolant, supplies an overvoltage to a cooling pump of the engine.

Description

technical field [0001] The present disclosure relates to a regenerative braking system and to a cooling control system and a fuel control system of an engine. Background technique [0002] The background description provided herein is for the purpose of generally presenting the context of the disclosure. The work of the present inventors described in this background section, and other aspects of this specification that are not prior art at the time of filing, are not admitted, expressly or implicitly, to be prior art against the present disclosure . [0003] A vehicle may include an internal combustion engine (ICE) and an engine control module (ECM). The ECM controls the ICE's fuel and cooling systems and one or more regenerative braking systems. The fuel system provides fuel to the ICE and may perform deceleration fuel cutoff (DFCO) to save fuel. DFCO may include keeping fuel from reaching the ICE. Fuel may be kept out of reach while the driveline (eg, transmission, pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01P7/04F01P7/14F01P7/10F02D43/00F02D29/02
CPCF01P7/164F01P7/167Y02T10/62
Inventor E.V.冈策S.R.史密斯J.M.斯塔内克
Owner GM GLOBAL TECH OPERATIONS LLC