Patent ID: 9261012
Filing Date: 2016-02-16
CPC Classification: F01P

Claim Text:
1. A coolant temperature sensor abnormality determination apparatus for use with an engine cooling system having: (i) a coolant passageway including an engine coolant passageway and a bypass passageway that bypasses an engine, (ii) a control valve configured to be in an open state to allow mixing of coolant from the engine coolant passageway and coolant from the bypass passageway at a confluence between the engine coolant passageway and the bypass passageway and configured to be in a closed state to restrict the mixing of the coolant from the engine coolant passageway and the coolant from the bypass passageway at the confluence between the engine coolant passageway and the bypass passageway, (iii) an engine coolant temperature sensor configured to detect an engine coolant temperature in the engine coolant passageway, and (iv) a bypass coolant temperature sensor arranged in the coolant passageway, downstream of the confluence between the engine coolant passageway and the bypass passageway, the coolant temperature sensor abnormality determination apparatus comprising: an electronic control unit configured to: