Patent application number | Description | Published |
20090056351 | Cabin Heating Control System - A system described is for providing improved cabin heating. The system may include a vehicle cabin heating system having a first and second heating system receiving coolant flow from the engine; and a control system for operating the engine at a first engine idle speed upon entering idle speed control operation from previous drive operation, maintaining said first idle speed for a duration, and then increasing engine speed to increase coolant flow to the second heating system during cold ambient conditions when the second heater system is in operation | 03-05-2009 |
20120104768 | METHODS AND SYSTEMS FOR IMPROVED ENGINE SPEED CONTROL DURING ENGINE STARTING - A system for improving engine starting is disclosed. In one example, an engine starting is improved by providing a variable load to the engine during engine starting. The variable load may be provided by controlling alternator field current during the engine start. | 05-03-2012 |
20130001006 | Method for Supplying Power to an Electrically Assisted Steering System - A method for supplying power to an electrically assisted steering system is described. In one example, the method adjusts alternator field current to increase energy supplied to the electrically assisted steering system in response to an automatic engine stop request. The method may improve operation of the electrically assisted steering system. | 01-03-2013 |
20130002210 | Method for Controlling Vehicle Launch - A method for improving starting of an engine that may be repeatedly stopped and started is presented. In one embodiment, the method adjusts a transmission actuator in response to engine combustion during an engine start. The method may improve vehicle launch for stop/start vehicles. | 01-03-2013 |
20140055102 | METHODS AND SYSTEMS FOR IMPROVED ENGINE SPEED CONTROL DURING ENGINE STARTING - A system for improving engine starting is disclosed. In one example, an engine starting is improved by providing a variable load to the engine during engine starting. The variable load may be provided by controlling alternator field current during the engine start. | 02-27-2014 |
20140095056 | Powertrain Delta Current Estimation Method - A vehicle includes an engine, electrical loads, and at least one controller. While the engine is on, the controller calculates the change in current demand of the electrical loads expected from turning the engine off. The decision to command the engine off is then based on the expected change in current demand. Electrical loads that will change state from on to off when the engine is turned off will increase the expected change in current demand. Electrical loads that will change state from off to on when the engine is turned off will decrease the expected change in current demand. Operating conditions associated with the electrical loads, such as operating voltage, temperature, and speed, may affect the expected change in current demand. | 04-03-2014 |
20150066292 | METHOD AND SYSTEM FOR OPERATING VEHICLE ACCESSORIES - A method and system for operating vehicle accessories is described. The method and system allocate an available amount of engine torque between different accessories depending on boundary conditions and nominal vehicle operating conditions. In one example, the accessories may include an air conditioner compressor, an alternator, and various vehicle electrical loads that are in electrical communication with the alternator. | 03-05-2015 |
20160103189 | Methods and Systems For Detecting Vehicle Charging System Faults - A vehicle may include a vehicle charging system having an alternator operatively coupled to an engine and a controller. The controller may be programmed to output a warning indicative of a vehicle charging system fault in response to a quotient of a voltage drop associated with the alternator and an output current of the alternator exceeding a threshold value while the alternator is operating in a steady state condition. | 04-14-2016 |