Dual-power isolation circuit, system and method for intelligent driving

Abstract

The invention discloses a dual-power isolation circuit, system and method for intelligent driving, a normally-closed relay is connected in series in a dual-power system circuit, and the opening and closing of the normally-closed relay are controlled under the opening and closing of an engine starting control signal so as to control the isolation of a main power supply and an auxiliary power supply. The circuit is simple in structure, clear in logic, few in related components, free of interference and influence of other components, convenient to maintain and capable of being modified in a short time. The relay is low in cost, can be widely applied to circuits with dual-power systems, such as the field of intelligent automobiles, large-scale equipment mounting and refitting markets, motor homes and the like, and can effectively reduce the cost. And the cost can be effectively controlled in the modification of the intelligent automobile. The circuit design has no space limitation, can be arranged together with an automobile circuit, can effectively isolate intelligent equipment, a main power supply and an automobile auxiliary power supply when the starter works, does not consume electric energy, improves the utilization rate of the electric energy, and has a stable safety characteristic.

Description

technical field [0001] The invention belongs to the technical field of vehicle dual power supply, and more particularly relates to a dual power supply voltage stabilization system and voltage stabilization method for intelligent driving when the vehicle is started. Background technique [0002] When an ordinary car is converted to a car with intelligent driving function, an additional battery of 300-1200 watts is required to be added to ensure the normal operation of the electrical appliance. Because the added main power supply is connected in parallel with the original auxiliary power supply of the car, the starter will use a large current when the car starts, and the main power supply and the auxiliary power supply will be affected by voltage fluctuations, but the added intelligent equipment also requires voltage fluctuations. At this stage, the voltage regulator is mainly used to avoid voltage fluctuations, but the voltage regulator is theoretically an electrical applianc...

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Problems solved by technology

[0006] There are certain disadvantages in this dual power supply system circuit in the transformation of smart cars: the voltage regulator C is large in size, and it needs to take up a lot of space in the car when it is installed in the circuit. The price of the voltage regulator C on the market is relatively high. C is not easy to repair, once it is damaged, only the assembly can be replaced. For smart cars, the cost of remanufacturing is relatively high. In the circuit, the voltage regulator C will also be subject to spike interference and resonance interference from other components, and the interference may cause the voltage regulator C to work. Poor condition will have a certain impact on the work efficiency of smart device D

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