Electric smart car electrical system with centralized architecture controller and redundant power supply

Abstract

The invention relates to an electrical system of an electric intelligent vehicle, for a centralized architecture controller and electricity supply redundancy. The electrical system comprises a high-voltage battery, a battery management system (1), a key switch (16), an electricity supply unit, an intelligent decision-making and control unit, a sensor unit and an actuator unit, wherein the high-voltage battery is connected with the battery management system (1) through an electrical circuit; the key switch (16) is provided with an OFF gear, an ACC gear, an ON gear and a START gear; the electricity supply unit comprises a main accumulator (12) and an auxiliary accumulator (11); the electrical circuit comprises a main ACC circuit, an auxiliary ACC circuit, an ON circuit, a START circuit and a constant electric circuit which is connected with a positive pole output terminal of the main accumulator (12). Compared with the prior art, the electrical system disclosed by the invention has the advantages that requirements of a control unit and a wire-controlled system of the electric intelligent vehicle for redundancy are met, hardware redundancy and electricity supply redundancy are designed for critical components including a steering unit, a braking unit, a central control unit and the like in the driving of vehicles, and the safety of autonomous vehicles is improved.

Description

technical field [0001] The invention relates to an electrical system of an intelligent vehicle, in particular to an electrical system of an electric intelligent vehicle with a centralized architecture controller and redundant power supply. Background technique [0002] The existing research and development of electric smart vehicles is generally based on pure electric vehicles, and the corresponding electrical systems are also developed based on the electrical systems of pure electric vehicles. However, since the future development trend of electric smart vehicles is steer-by-wire, brake-by-wire, and Ethernet communication, rather than the current common mechanical steering, hydraulic brake, and CAN bus communication, it is necessary to ensure redundancy in hardware, power supply, and communication . [0003] Chinese patent CN102501770A describes a pure electric vehicle electrical system. The electrical system describes the working mode of the pure electric vehicle electric...

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Problems solved by technology

[0003] Chinese patent CN102501770A describes a pure electric vehicle electrical system, which describes the working mode of the pure electric vehicle electrical system in detail, but does not make redundant designs for the electric intelligent vehicle control system and the wire control system

If the development is still based on the original pure electric vehicle electrical system, when there is a problem with the key controller, key components or power supply, it will bring safety hazards to the entire vehicle and passengers

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