GB1420917A - Headway control systems for road vehicles - Google Patents

Headway control systems for road vehicles

Info

Publication number
GB1420917A
GB1420917A GB5891371A GB5891371A GB1420917A GB 1420917 A GB1420917 A GB 1420917A GB 5891371 A GB5891371 A GB 5891371A GB 5891371 A GB5891371 A GB 5891371A GB 1420917 A GB1420917 A GB 1420917A
Authority
GB
United Kingdom
Prior art keywords
output
control
vehicle
headway
distance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5891371A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZF International UK Ltd
Original Assignee
Lucas Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB5891371A priority Critical patent/GB1420917A/en
Priority to FR7246797A priority patent/FR2165692A5/fr
Priority to IT54739/72A priority patent/IT974090B/en
Priority to JP12633472A priority patent/JPS5727430B2/ja
Priority to NL7217249A priority patent/NL7217249A/xx
Priority to DE19722261948 priority patent/DE2261948A1/en
Publication of GB1420917A publication Critical patent/GB1420917A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/93185—Controlling the brakes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9319—Controlling the accelerator
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/932—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles using own vehicle data, e.g. ground speed, steering wheel direction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9321—Velocity regulation, e.g. cruise control
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
    • G01S2013/9329—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles cooperating with reflectors or transponders

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Controls For Constant Speed Travelling (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
  • Control Of Velocity Or Acceleration (AREA)

Abstract

1420917 Automatic headway control LUCAS INDUSTRIES Ltd 20 Nov 1972 [18 Dec 1971] 58913/71 Heading G3R [Also in Divisions H3-5] A vehicle radar 11 controls the speed of the vehicle to maintain a predetermined headway and utilizes a frequency modulated continuous carrier of not less than 26GHz, the modulation waveform having portions of continuously varying frequency, Fig. 3 (not shown). A pulse counter 14 affords a digital output representing the distance h to the vehicle ahead and #h. A speed sensor 22 derived output and the analogue of the counter output after scaling afford an error signal from amplifier 18 to actuate throttle control 28 and brake control 29 as required. A reference source 27 is provided to adjust the change-over between throttle and braking control. Gunn diode oscillators. The radar "head" incorporates a sawtooth generator (43), a Gunn diode oscillator (41) and a balanced mixer (46) affording the distance-dependent difference frequency output, Fig. 2 (not shown).
GB5891371A 1971-12-18 1971-12-18 Headway control systems for road vehicles Expired GB1420917A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB5891371A GB1420917A (en) 1971-12-18 1971-12-18 Headway control systems for road vehicles
FR7246797A FR2165692A5 (en) 1971-12-18 1972-12-15
IT54739/72A IT974090B (en) 1971-12-18 1972-12-15 CONTROL SYSTEM FOR SAFETY DISTANCE FOR ROAD VEHICLES
JP12633472A JPS5727430B2 (en) 1971-12-18 1972-12-18
NL7217249A NL7217249A (en) 1971-12-18 1972-12-18
DE19722261948 DE2261948A1 (en) 1971-12-18 1972-12-18 DISTANCE CONTROL SYSTEM FOR VEHICLES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5891371A GB1420917A (en) 1971-12-18 1971-12-18 Headway control systems for road vehicles

Publications (1)

Publication Number Publication Date
GB1420917A true GB1420917A (en) 1976-01-14

Family

ID=10482673

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5891371A Expired GB1420917A (en) 1971-12-18 1971-12-18 Headway control systems for road vehicles

Country Status (6)

Country Link
JP (1) JPS5727430B2 (en)
DE (1) DE2261948A1 (en)
FR (1) FR2165692A5 (en)
GB (1) GB1420917A (en)
IT (1) IT974090B (en)
NL (1) NL7217249A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139035A (en) * 1983-03-18 1984-10-31 Marconi Co Ltd Radar vehicle braking control

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4348675A (en) * 1979-05-23 1982-09-07 Honda Giken Kogyo Kabushiki Kaisha FM-CW Radar system for use in an automotive vehicle
JPS59178327U (en) * 1983-05-16 1984-11-29 株式会社　トヤマゴ−ルドウイン hat with power supply

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441794A (en) * 1966-06-15 1969-04-29 Varian Associates Dither-tuned tunable microwave tube apparatus
DE2002012A1 (en) * 1969-01-21 1970-08-13 Del Signore Dr Giovanni Device and method for reporting obstacles and for displaying the distance of the obstacles
US3590313A (en) * 1970-01-22 1971-06-29 Varian Associates Dither tuned microwave tube with corrected tuner resolver output

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2139035A (en) * 1983-03-18 1984-10-31 Marconi Co Ltd Radar vehicle braking control

Also Published As

Publication number Publication date
IT974090B (en) 1974-06-20
JPS5727430B2 (en) 1982-06-10
FR2165692A5 (en) 1973-08-03
DE2261948A1 (en) 1973-06-20
NL7217249A (en) 1973-06-20
JPS4867688A (en) 1973-09-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee