System and method for managing waste heat of electric vehicle
First Claim
1. A waste heat management system of an electric vehicle, comprising:
- a pump configured to control a flow of cooling fluid through the system;
an onboard charger (OBC) cooling fluid line and an electric motor cooling fluid line which diverge in parallel from an outlet of a cooling fluid line of the pump; and
a heater core cooling fluid line and a radiator cooling fluid line which are respectively connected in parallel at a junction with an inlet of the fluid pump cooling fluid line and at a junction of outlets of the heater core cooling fluid line and the radiator cooling fluid line.
3 Assignments
0 Petitions
Accused Products
Abstract
Disclosed herein is a waste heat management system of an electric vehicle. In particular, a pump for controlling the flow of cooling fluid, an OBC cooling fluid line and a motor cooling fluid line which diverge in parallel from an outlet of a cooling fluid line of the fluid pump, and a heater core cooling fluid line and a radiator cooling fluid line which are respectively connected in parallel with a junction of an inlet of the fluid pump cooling fluid line and a junction of outlets of the heater core cooling fluid line and the radiator cooling fluid line, are interconnected to provide both heating and air-conditioning to the interior of the vehicle. Additionally, the present invention, also allows the motor to be preheated when the vehicle is not running.
-
Citations
15 Claims
-
1. A waste heat management system of an electric vehicle, comprising:
-
a pump configured to control a flow of cooling fluid through the system; an onboard charger (OBC) cooling fluid line and an electric motor cooling fluid line which diverge in parallel from an outlet of a cooling fluid line of the pump; and a heater core cooling fluid line and a radiator cooling fluid line which are respectively connected in parallel at a junction with an inlet of the fluid pump cooling fluid line and at a junction of outlets of the heater core cooling fluid line and the radiator cooling fluid line. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A method of managing waste heat of an electric vehicle using an OBC cooling fluid line and an electric motor cooling fluid line that diverge in parallel from a fluid pump, comprising the steps of:
-
determining a temperature to select any one of heating and air-conditioning; and determining whether or not a battery is charging when heating has been selected, and then passing cooling fluid through an onboard charger (OBC) cooling fluid line, the electric motor cooling fluid line and a heater core cooling fluid line while the battery is charging, and passing cooling fluid through the electric motor cooling fluid line and a heater core cooling fluid line while the battery is not charging. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14)
-
-
15. A non-transitory computer readable medium containing executable program instructions executed by a processor, comprising:
-
program instructions that determine a temperature in an electric vehicle and select any one of heating and air-conditioning; and program instructions that determine whether or not a battery is charging when heating has been selected, and then control a first and second valve to pass cooling fluid through an on board charger (OBC) cooling fluid line, an electric motor cooling fluid line and a heater core cooling fluid line while the battery is charging, and control the first and second valve to pass cooling fluid through the electric motor cooling fluid line and a heater core cooling fluid line while the battery is not charging.
-
Specification