CN202455119U - Intelligent control circuit for drive motor of electric vehicle - Google Patents

Abstract

The utility model discloses a control circuit for a drive motor of an electric vehicle. The intelligent control circuit for the drive motor of the electric vehicle comprises a voltage sampling unit, a voltage Hall device, an over-voltage sampling unit, an over-voltage comparator, an over-voltage control signal output unit, an under-voltage sampling unit, an under-voltage comparator and an under-voltage control signal output unit. The voltage sampling unit is connected with the voltage Hall device, and the voltage Hall device is connected with the over-voltage sampling unit and the under-voltage sampling unit. The over-voltage sampling unit is connected with the over-voltage comparator and the over-voltage control signal output unit. The under-voltage sampling unit is connected with the under-voltage comparator and the under-voltage control signal output unit. The over-voltage control signal output unit and the under-voltage control signal output unit are connected with a generator set. By setting charge time and stopping the charge time in an intelligently humanized mode, the longest service life of batteries can be ensured, and simultaneously the stable and continuous operation of an electric bus can be ensured.

Description

The driving motor for electric automobile intelligence control circuit

Technical field

The utility model relates to a kind of control circuit, especially a kind of intelligence control circuit that is used for the drive motors of electric automobile.

Background technology

Pure electric automobile is the new technology of the automobile manufacturing field that emerges in recent years, has revolutionary character, and its aim is will reach energy-conservation significantly, reduce discharging.Pure electric automobile is technology path and the thinking of development that adopt usually the home and abroad.Body portion, transmission and braking, knuckle section air-conditioning part technology, the method for all having continued to use orthodox car are in addition made, and with the charging pile of fixed point it are charged.The shortcoming of its existence is: builds charging pile and drops into hugely, and can only fill soon, can not the standard charging, and cause the design service life of battery not protected.Its cost and follow-up replacement cost are remained high, can't large tracts of land promote.If adopt vehicle-mounted distance increasing unit, utilization intelligence control circuit technology path can make electric automobile obtain vehicle power, accomplishes the charging while going, and its benefit has three: one, no longer relies on the charging pile charging, can break through high cost, the problem that distance travelled is too short; The 2nd, solved battery intelligent standard charging, avoided the problem of filling soon all the time, guaranteed the design service life of battery; The 3rd, the energy that has solved battery can only obtain when charging pile charges, and the power consumption limit electric energy supplement of can not the limit going has caused the use amount of battery excessive, makes its cost, weight, volume all incompatible with this vehicles of automobile, and cost performance is low excessively.Make the battery consumption of electric automobile reduce 90% after adopting this intelligent charging control technology route, the battery cost of electronic motor bus reduces by 90%, reduces to 100,000 yuan by 900,000 yuan.The weight and volume of battery also can reduce significantly.Solved the bottleneck of current electric automobile development, promptly low excessively than similar vehicle orthodox car cost performance, and the problem of can not large tracts of land promoting.For the industrialized development of electric automobile can be promoted the technical support that provides feasible as early as possible.

Yet, also do not occur a kind of electric automobile at present and have the drive motors intelligence control circuit.

The utility model content

The purpose of the utility model is to provide a kind of driving motor for electric automobile control circuit, can according to the current electric weight of battery automatically battery is charged and stop the charging.

The utility model is realized through following technical scheme:

The driving motor for electric automobile control circuit comprises: voltage sampling unit, voltage hall device, superpressure sampling unit, superpressure comparator, superpressure control signal output unit, under-voltage sampling unit, under-voltage comparator, under-voltage control signal output unit;

Said voltage sampling unit connects the voltage hall device, said voltage hall device connects superpressure sampling unit and under-voltage sampling unit;

Said superpressure sampling unit, superpressure comparator and superpressure control signal output unit are connected successively;

Said under-voltage sampling unit, under-voltage comparator and under-voltage control signal output unit are connected successively;

Said superpressure control signal output unit is connected generating set with under-voltage control signal output unit.

The utility model obtains the voltage of accumulator of electric car group through the voltage sampling unit; And export the voltage hall device to; The voltage hall device detects the voltage that obtains; Become low-voltage dc voltage after high-voltage dc voltage isolated through insulation, the change in voltage that described low-voltage dc voltage can linear reflection superpressure dc terminal;

Said voltage exports superpressure comparator and under-voltage comparator place to after superpressure sampling unit and the sampling of under-voltage sampling unit, compare; When the voltage that the voltage of being taken a sample sets above the superpressure comparator, the output of superpressure comparator outputs signal to superpressure control signal output unit, and this output unit is output as high potential, sends control signal generating set is stopped charge in batteries; When the voltage of being taken a sample is lower than the voltage that under-voltage comparator sets, under-voltage comparator outputs signal to under-voltage control signal output unit, and this output unit is output as high potential, sends control signal and makes generating set begin charging.

The advantage of the utility model: the setting charging interval and the charging interval of stopping through intelligence and hommization, not only can guarantee the life-span that battery is the longest, also can guarantee the operation that electric automobile steadily continues simultaneously.

Description of drawings

Fig. 1 is the schematic block circuit diagram of the utility model embodiment.

Fig. 2 is the circuit diagram of the utility model embodiment.

Among the figure: 1, voltage sampling unit; 2, voltage hall device; 3, superpressure control signal output unit; 4, superpressure comparator; 5, under-voltage comparator; 6, under-voltage control signal output unit; 7, superpressure sampling unit; 8, under-voltage sampling unit.

Embodiment

With reference to shown in Figure 1; The driving motor for electric automobile intelligence control circuit comprises: voltage sampling unit 1, voltage hall device 2, superpressure sampling unit 7, superpressure comparator 4, superpressure control signal output unit 3, under-voltage sampling unit 8, under-voltage comparator 5, under-voltage control signal output unit 6;

Said voltage sampling unit 1 connects voltage hall device 2, said voltage hall device 2 connects superpressure sampling unit 7 and under-voltage sampling unit 8;

Said superpressure sampling unit 7, superpressure comparator 4 are connected with superpressure control signal output unit 3 successively;

Said under-voltage sampling unit 8, under-voltage comparator 5 are connected with under-voltage control signal output unit 6 successively;

Said superpressure control signal output unit 3 is connected generating set with under-voltage control signal output unit 6.

Fig. 2 is the circuit diagram of present embodiment, and wherein voltage sample circuit is to connect batteries.

Present embodiment obtains the voltage of accumulator of electric car group through voltage sampling unit 1; And export voltage hall device 2 to; 2 pairs of voltages that obtain of voltage hall device detect; Become low-voltage dc voltage after high-voltage dc voltage isolated through insulation, the change in voltage that described low-voltage dc voltage can linear reflection superpressure dc terminal;

Said voltage exports superpressure comparator 4 and under-voltage comparator 5 places to after superpressure sampling unit 7 and under-voltage sampling unit 8 are taken a sample, compare; When the voltage that the voltage of being taken a sample sets above superpressure comparator 4, the output of superpressure comparator 4 outputs signal to superpressure control signal output unit 3, and this output unit is output as high potential, sends control signal generating set is stopped charge in batteries; When the voltage of being taken a sample is lower than the voltage that under-voltage comparator 5 sets, under-voltage comparator 5 outputs signal to under-voltage control signal output unit 6, and this output unit is output as high potential, sends control signal and makes generating set begin charging.

Claims (1)

1. electronic vapour drive motors intelligence control circuit is characterized in that: comprise voltage sampling unit, voltage hall device, superpressure sampling unit, superpressure comparator, superpressure control signal output unit, under-voltage sampling unit, under-voltage comparator, under-voltage control signal output unit;

Said voltage sampling unit connects the voltage hall device, said voltage hall device connects superpressure sampling unit and air pressure sampling unit;

Said superpressure sampling unit, superpressure comparator and superpressure control signal output unit are connected successively;

Said under-voltage sampling unit, under-voltage comparator and under-voltage control signal output unit are connected successively;

Said superpressure control signal output unit is connected generating set with under-voltage control signal output unit.

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