Automatic train protection system

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(11)

EP 2 769 897 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	29.11.2017 Bulletin 2017/48

(43)	Date of publication A2:
	27.08.2014 Bulletin 2014/35

(21)	Application number: 14155225.7

(22)	Date of filing: 14.02.2014

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International Patent Classification (IPC):

B61L 25/02^(2006.01)

B61L 27/00^(2006.01)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME

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Priority:

20.02.2013 JP 2013030863

(71)	Applicant: Hitachi, Ltd.
	Tokyo 100-8280 (JP)

(72)	Inventors:
	Miyaji, Masayuki Chiyoda-ku, Tokyo 100-8280 (JP) Yorishige, Tsuyoshi Chiyoda-ku, Tokyo 100-8280 (JP) Koike, Jun Chiyoda-ku, Tokyo 100-8280 (JP)

(74)	Representative: Gill, Stephen Charles et al
	Mewburn Ellis LLP City Tower 40 Basinghall Street London EC2V 5DE City Tower 40 Basinghall Street London EC2V 5DE (GB)

(54)	Automatic train protection system

(57) There is provided an automatic train protection system that prevents wrong train position information from being transmitted from onboard system in a train to trackside system to impair the safety of train operation. When running or movement of the train is detected while internal information such as train position information and train control information are recorded on a recording medium in the train, onboard system deletes the internal information recorded on the recording medium. The onboard system does not record internal information such as train position information and train control information on the recording medium while the train is running.

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