Vehicle travel control apparatus

• US 7,072,749 B2
• Filed: 11/22/2002
• Issued: 07/04/2006
• Est. Priority Date: 06/20/2000
• Status: Expired due to Fees

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Endo, Yoshinori, Nishino, Kimio, Minowa, Toshimichi, Takezaki, Jiro, Yoshikawa, Tokuji, Kuragaki, Satoru
• Primary Examiner(s): Beaulieu, Yonei
• Application Number:
  US10/301,744
• Publication Number:
  US 20040019411A1
• Time in Patent Office: 1,320 Days
• Field of Search: 701/36, 701/70, 701/75, 701/78, 701/93, 701/96, 340/286.1
• US Class Current: 701/36
• CPC Class Codes: B60K 31/0008 including means for detecting potential obstacles in vehicle path
• CPC Class Codes: B60K 31/0058 responsive to externally generated signalling
• CPC Class Codes: B60K 31/0066 responsive to vehicle path curvature
• CPC Class Codes: B60K 31/04 and means for comparing one electrical quantity, e.g. voltage, pulse, waveform, flux, or the like, with another quantity of a like kind, which comparison means is involved in the development of an electrical signal which is fed into the controlling means
• CPC Class Codes: B60K 31/107 the memory being digital
• CPC Class Codes: B60T 2201/02 Active or adaptive cruise control system; Distance control
• CPC Class Codes: B60W 2520/14 Yaw
• CPC Class Codes: B60W 2520/28 Wheel speed
• CPC Class Codes: B60W 2552/05 Type of road, e.g. motorways, local streets, paved or unpaved roads
• CPC Class Codes: B60W 2556/50 of positioning data, e.g. GPS [Global Positioning System] data
• CPC Class Codes: B60W 30/16 Control of distance between vehicles, e.g. keeping a distance to preceding vehicle
• CPC Class Codes: F02B 2075/125 Direct injection in the combustion chamber for spark ignition engines, i.e. not in pre-combustion chamber
• CPC Class Codes: F02B 23/101 the injector being placed on or close to the cylinder centre axis, e.g. with mixture formation using spray guided concepts
• CPC Class Codes: F16H 2059/666 Determining road conditions by using vehicle location or position, e.g. from global navigation systems [GPS]
• CPC Class Codes: F16H 2061/022 Calculation or estimation of optimal gear ratio, e.g. best ratio for economy drive or performance according driver preference, or to optimise exhaust emissions
• CPC Class Codes: F16H 61/0213 characterised by the method for generating shift signals
• CPC Class Codes: G01C 21/26 specially adapted for navigation in a road network
• CPC Class Codes: G06F 2009/45583 Memory management, e.g. access or allocation
• CPC Class Codes: G06F 9/45558 Hypervisor-specific management and integration aspects
• CPC Class Codes: G06F 9/4843 by program, e.g. task dispatcher, supervisor, operating system

Abstract

An object of the present invention is to provide a vehicle control apparatus which makes it possible to share information by a plurality of devices and which can improve controllability. An OS switching means (OS-CH) switches a plurality of operating system (OS1, OS2). A shared object (CO) has a memory resource which can be referred to from the plurality of operating systems. The shared object (CO) shares at least road information, and the road information registered by the application of one of the operating systems can be referred to from the application of the other operating system.

Claims

1. A vehicle travel control apparatus comprising a range sensor, a vehicle speed controller, at least one hydraulic pump, at least one proportional solenoid valve and a brake controller,

wherein, when said vehicle speed controller judges a situation of braking based on information of said range sensor, said brake controller actuates said hydraulic pump and said proportional solenoid valve based on a command of said vehicle speed controller, and controls a braking torque applied to wheels of the vehicle.

2. A vehicle travel control apparatus comprising a range sensor, a vehicle speed controller, plural hydraulic pumps, plural proportional solenoid valves and a brake controller,

wherein, when said vehicle speed controller judges a situation of braking based on information of said range sensor, said brake controller actuates said hydraulic pumps and said proportional solenoid valves based on a command of said vehicle speed controller, and controls a braking torque applied to wheels of the vehicle.

3. A vehicle travel control apparatus comprising a range sensor, a vehicle speed controller, a hydraulic pump, a hydraulic control valve and a brake controller,

wherein, when said vehicle speed controller judges a situation of braking based on information of said range sensor, said brake controller actuates said hydraulic pump and said hydraulic control valve based on a command of said vehicle speed controller, and controls a braking torque applied to wheels of the vehicle.

4. A vehicle travel control apparatus comprising at least one range sensor, at least one hydraulic pump, at least one hydraulic control valve, a brake pedal and a brake controller,

wherein, said brake controller actuates said hydraulic pump and said hydraulic control valve based on information of said range senor and said brake pedal, and controls braking torque of wheels.

5. A vehicle travel control apparatus comprising at least one range sensor, a vehicle speed controller, and a brake controller,

wherein, when said vehicle speed controller judges a situation of braking based on information of said range sensor, said brake controller actuates a hydraulic pump and a proportional solenoid valve based on a command of said vehicle speed controller, and controls braking torque of wheels.

6. A vehicle travel control apparatus comprising a range sensor, a vehicle speed controller, and a brake controller,

wherein, when said vehicle speed controller judges a situation of braking based on information of said range sensor, said brake controller actuates a said hydraulic pump and hydraulic control valve based on a command of said vehicle speed controller, and controls braking torque of wheels.

7. A vehicle travel control apparatus comprising at least one range sensor, a brake pedal and a brake controller,

wherein, said brake controller actuates a hydraulic pump and a hydraulic control valve based on information of said range and said brake pedal, and controls braking torque of wheels.