The invention provides a three-way catalytic converter preheating control method and system, a vehicle and a storage medium. The includes when the temperature of an exhaust pipe of the hybrid electric vehicle is lower than a first temperature threshold value, sending a first work instruction; the high-low pressure conversion module outputting a first working voltage according to the first working instruction so as to start preheating of a catalyst in a three-way catalytic converter; when working data of the hybrid electric vehicle meets the switching condition, sending a second working instruction to make the high-low voltage conversion module outputs a second working voltage and stops outputting the first working voltage so as to stop the electric heating. According to the invention, two working modes can be provided, and the power battery can be used for electrically heating the catalyst in advance through the high-low pressure conversion module.

The invention provides a three-way catalytic converter preheating control method and system, a vehicle and a storage medium. The includes when the temperature of an exhaust pipe of the hybrid electric vehicle is lower than a first temperature threshold value, sending a first work instruction; the high-low pressure conversion module outputting a first working voltage according to the first working instruction so as to start preheating of a catalyst in a three-way catalytic converter; when working data of the hybrid electric vehicle meets the switching condition, sending a second working instruction to make the high-low voltage conversion module outputs a second working voltage and stops outputting the first working voltage so as to stop the electric heating. According to the invention, two working modes can be provided, and the power battery can be used for electrically heating the catalyst in advance through the high-low pressure conversion module.

The invention relates to a high-voltage vehicle heater (10), comprising a control device (12), comprising an electrical heating element (14) which is intended for heating a heating medium (16), and comprising a first data interface (18) by means of which a heating request signal can be received, said heating request signal representing an external heating request, wherein the control device (12) determines a first data set which represents at least one first electrical power with which the electrical heating element is to be operated in order to meet the external heating request, wherein the control device (12) determines, on the basis of a parameter data set, a second data set which represents at least one second electrical power which can be supplied to the electrical heating element (14) in addition to the first electrical power, without there being a risk of the vehicle heater (10) being damaged.

A power supply system for safety-relevant systems in a motor vehicle is provided that includes a first supply path and a second supply path. The first supply path includes a first connection point for a first voltage source, one or more first supply points for a safety-relevant load, and a first fuse between the first connection point and the first supply point. The second supply path is electrically coupled to the first supply path and includes a second connection point for a second voltage source, one or more second supply points for the safety-relevant load, and an electronic second fuse coupled between the second connection point and the second supply point. The safety-relevant load is capable of being electrically coupled to both the first and second supply point. Disconnecting elements are provided to isolate a fault in conformity with ASIL B.

A power supply system for safety-relevant systems in a motor vehicle is provided that includes a first supply path and a second supply path. The first supply path includes a first connection point for a first voltage source, one or more first supply points for a safety-relevant load, and a first fuse between the first connection point and the first supply point. The second supply path is electrically coupled to the first supply path and includes a second connection point for a second voltage source, one or more second supply points for the safety-relevant load, and an electronic second fuse coupled between the second connection point and the second supply point. The safety-relevant load is capable of being electrically coupled to both the first and second supply point. Disconnecting elements are provided to isolate a fault in conformity with ASIL B.

A method of controlling an air conditioner includes determining whether or not a signal for operating the air conditioner is input to a controller. When it is determined that the signal for operating the air conditioner is input to the controller, determining whether or not conditions for variably controlling the air conditioner are satisfied. When it is determined that the conditions are satisfied, an energy flow mode is checked on the basis of an energy flow between a battery, a motor, an engine, and electric components. The air conditioner is controlled in a mode corresponding to the checked energy flow mode.

A method of controlling an air conditioner includes determining whether or not a signal for operating the air conditioner is input to a controller. When it is determined that the signal for operating the air conditioner is input to the controller, determining whether or not conditions for variably controlling the air conditioner are satisfied. When it is determined that the conditions are satisfied, an energy flow mode is checked on the basis of an energy flow between a battery, a motor, an engine, and electric components. The air conditioner is controlled in a mode corresponding to the checked energy flow mode.

Systems include a prime mover that generates power for a mobile vehicle; a power converter that receives a portion of the generated power, and provides configured electrical power to an aftertreatment heater device configured to selectively heat an exhaust fluid of the prime mover; at least one aftertreatment component positioned downstream of the aftertreatment heater device, and configured to treat a constituent of the exhaust fluid; and a controller including an operating conditions circuit structured to interpret an operating parameter of one of the power converter, the aftertreatment heater device, the prime mover, or the exhaust fluid; a heater management circuit that determines a heating power value in response to the operating parameter; and a heater control circuit that provides a heating command in response to the heating power value; and wherein the power converter is responsive to the heating command to heat the exhaust fluid of the prime mover.

Systems include a prime mover that generates power for a mobile vehicle; a power converter that receives a portion of the generated power, and provides configured electrical power to an aftertreatment heater device configured to selectively heat an exhaust fluid of the prime mover; at least one aftertreatment component positioned downstream of the aftertreatment heater device, and configured to treat a constituent of the exhaust fluid; and a controller including an operating conditions circuit structured to interpret an operating parameter of one of the power converter, the aftertreatment heater device, the prime mover, or the exhaust fluid; a heater management circuit that determines a heating power value in response to the operating parameter; and a heater control circuit that provides a heating command in response to the heating power value; and wherein the power converter is responsive to the heating command to heat the exhaust fluid of the prime mover.

A motor driving control apparatus in the embodiment includes: a first controller configured to control powering and regeneration of a motor; a second controller configured to control the first controller; and assistant circuitry configured to activate the second controller in a stop state, when a counter electromotive force caused by the motor, which is rotated without control by the first controller, satisfies a predetermined condition, before a power-on instruction for the motor driving control apparatus is made or in a state where the power-on instruction for the motor driving control apparatus is not made.