Heater control device and heater control method
US11035275B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2017 |
| Grant date | Jun 15, 2021 |
| Priority date | — |
| Expiry date | Nov 12, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The present invention provides a heater control device and a heater control method capable of suppressing a maximum value of a current flowing through a current supply circuit to a heater in a reducing agent supplier. The heater control device is a heater control device including: a tank heater for heating a reducing agent stored in a tank; and a piping heater for heating the reducing agent in a flow channel including a supply channel, and includes: a first current supply circuit that supplies a current to the tank heater; a second current supply circuit that supplies a current to the piping heater; a common current supply circuit that connects between a battery and each of the first current supply circuit and the second current supply circuit; and a heater control unit that controls driving of the tank heater and the piping heater. The heater control unit controls driving of the tank heater and the piping heater on the basis of a total value of the current supplied to the tank heater and the current supplied to the piping heater and a rated current value of the common current supply circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.