초록 ▼

A hydrogen detector detects a concentration of hydrogen gas in an enclosed space communicating with an accommodation space for accommodating a battery, a hydrogen gas expeller is operative for expelling hydrogen gas from the enclosed space, a controller responds to a concentration of hydrogen gas de

A hydrogen detector detects a concentration of hydrogen gas in an enclosed space communicating with an accommodation space for accommodating a battery, a hydrogen gas expeller is operative for expelling hydrogen gas from the enclosed space, a controller responds to a concentration of hydrogen gas detected by the detector, as the detected concentration exceeds a lower significant concentration, to provide a control signal for driving the expeller, an alarm system is operative for providing an alarm on an abnormal concentration of hydrogen gas, and another controller responds to the concentration of hydrogen gas detected by the detector, as the detected concentration exceeds a higher significant concentration, to provide a control signal for driving the alarm system.

대표청구항 ▼

[What is claimed is:] [1.]a detector for detecting a concentration of hydrogen gas in an enclosure in flow communication with an accommodation space for accommodating a battery for driving an electric automobile;an expeller for expelling hydrogen gas from the enclosure;an alarm provider for providin

[What is claimed is:] [1.]a detector for detecting a concentration of hydrogen gas in an enclosure in flow communication with an accommodation space for accommodating a battery for driving an electric automobile;an expeller for expelling hydrogen gas from the enclosure;an alarm provider for providing an alarm;a battery deterioration determination mechanism for determining a deterioration condition of the battery; andat least one controller,wherein said at least one controller provides a first control signal for driving the expeller when the detector detects a hydrogen gas concentration greater than a first predetermined concentration, provides a second control signal for driving the alarm provider when the detector detects a hydrogen gas concentration greater than a second predetermined concentration which is greater than the first predetermined concentration, and provides a third control signal to drive the expeller when the battery deterioration determination mechanism determines a deterioration condition of the battery.