Electric power steering control device

• US 7,142,964 B2
• Filed: 08/27/2003
• Issued: 11/28/2006
• Est. Priority Date: 10/09/2002
• Status: Expired due to Fees

• Current Assignee: Honda Giken Kogyo Kabushiki Kaisha (Honda Motor Company)
• Original Assignee: Honda Giken Kogyo Kabushiki Kaisha (Honda Motor Company)
• Inventors: Hamamoto, Kyoji, Watanabe, Kazuhisa, Mukai, Yoshinobu, Horii, Hiroaki
• Primary Examiner(s): ARTHUR JEANGLAUDE, GERTRUDE
• Application Number:
  US10/648,929
• Publication Number:
  US 20040073345A1
• Time in Patent Office: 1,189 Days
• Field of Search: 701/1, 701/36, 701 41- 43, 180/410, 180412-413, 180421-422, 180443-447
• US Class Current: 701/41
• CPC Class Codes: B62D 5/0457 characterised by control features of the drive means as such
• CPC Class Codes: B62D 5/0463 calculating assisting torque from the motor based on driver input

Abstract

An electric power steering control device includes a memory. The memory is accommodated in the electric power steering control device mounted on a vehicle, and permits rewrite and storage of data. Transmitting a signal from an external of the vehicle allows the data stored in the memory to be rewritten.

Claims

1. An electric power steering control device including:

a memory which is accommodated in the electric power steering control device mounted on a vehicle, and which permits data to be rewritten and stored therein, wherein transmitting a signal from an external of the vehicle allows the data stored in the memory to be rewritten; and

separate from the memory, a ROM including means for storing a plurality of map data for a plurality of different vehicles, the memory including means for storing label information corresponding to one of the plurality of map data;

means for reading out the label information at a start-up of the electric power steering control device;

means for selecting the one of the plurality of map data in the ROM based on this label information to be read out; and

means for controlling an assist steering force based on the selected map data.

2. A method for initializing an electric power steering control device, having a memory which is accommodated in the electric power steering control device mounted on a vehicle, and which permits data to be rewritten and stored therein, wherein transmitting a signal from an external of the vehicle allows the data stored in the memory to be rewritten;

and separate from the memory, a ROM which stores a plurality of map data for a plurality of different vehicles, wherein the memory stores label information corresponding to one of the plurality of map data, wherein the label information is read out at a stan-up of the electric power steering control device, followed by selection of the one map data in the ROM based on this label information to be read out, and wherein an assist steering force is controlled based on the selected map data;

the method comprising;

copying the label information for the selected map data from the ROM to the memory;

selecting an address where the selected map data on the ROM is stored based on the label information;

reading the selected map data from the ROM and storing the selected map data in the memory; and

copying a set of constants or mathematical expression data from the ROM to the memory.