Method and device for providing eco-driving information

• US 8,718,914 B2
• Filed: 06/15/2012
• Issued: 05/06/2014
• Est. Priority Date: 11/14/2011
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Inventors: Park, Jae Hyun, Kim, Sang Hun, Kim, Jae Woong, Park, Joon Hyung
• Primary Examiner(s): Cheung, Mary
• Assistant Examiner(s): Trivedi, Atul
• Application Number:
  US13/524,133
• Publication Number:
  US 20130124077A1
• Time in Patent Office: 690 Days
• Field of Search: 180/69.3, 180170-171, 180/292, 180/312, 180/338, 180/364, 180/423, 701/7, 701/22, 701 73- 74, 701 79- 81, 701/86, 701/93, 701/96, 701103-104, 701/110, 701/112, 701/121, 701/123, 701/497
• US Class Current: 701/123
• CPC Class Codes: B60R 16/0236 for economical driving
• CPC Class Codes: B60W 2050/146 Display means
• CPC Class Codes: B60W 2530/10 Weight
• CPC Class Codes: B60W 2530/16 Driving resistance
• CPC Class Codes: B60W 40/13 Load or weight
• CPC Class Codes: Y02T 10/84 Data processing systems or methods, management, administration

Abstract

Disclosed is a device and method of providing a driver with eco-driving information. More specifically, the disclosed method and device induces a driver to operate a vehicle in an eco-friendly manner by computing for and displaying to the driver a fuel efficiency oriented vehicle speed that maximizes the vehicle'"'"'s driving distance based on the vehicle'"'"'s current weight and electrical load.

Claims

1. A device for providing eco-driving information of a vehicle, comprising:

a vehicle weight calculating unit configured to calculate a current weight of the vehicle based on data received from a plurality of devices within the vehicle;

an electrical load computing unit configured to compute an electrical load of auxiliary machinery currently being used in the vehicle;

a vehicle speed calculating unit configured to calculate, using a mileage map, a fuel efficiency oriented vehicle speed that maximizes the vehicle'"'"'s driving distance according to the calculated vehicle weight and the calculated electrical load; and

a display device configured to display the calculated fuel efficiency oriented vehicle speed to a user,

wherein the weight of the vehicle is calculated from the power consumption of a vehicle driving motor, an air density, an air resistance coefficient, a projected area of the vehicle, the vehicle speed, a friction coefficient of a road the vehicle is currently driving on, a gravity acceleration, and a slope of the road the vehicle is currently driving on, and

wherein the weight of the vehicle is calculated by the following equation

2. The device for providing eco-driving information of a vehicle of claim 1, wherein the electrical load computing unit computes the electrical load of the auxiliary machinery by summing up electrical loads of all used auxiliary machineries by monitoring CAN of the vehicle.

3. The device for providing eco-driving information of a vehicle of claim 1, wherein the display device compares and schematically displays a fuel efficiency level of the current vehicle speed as well as displaying the fuel efficiency oriented vehicle speed.