JP2011051504A - Heater control device for heating electric vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reasonably start a heater for heating an electric vehicle, so as to prevent trouble with battery charging. <P>SOLUTION: A heater control device includes: heater control means 5 controlling the heater heating an electric vehicle such as a seat heater 6 for heating a seat, and battery charging control means 4 controlling the charging of a battery 2 being a power source for the electric vehicle. The heater control means 5 starts energizing the seat heater 6 by use of a charge completion signal from the battery charging control means 4. Therefore, this device, surely and quickly charging the battery 2, is practical, and in addition, enables preheating in cold district in winter, thereby largely enhances the usability of the electric vehicle. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a control device such as a seat heater used for heating an electric vehicle.

  Conventionally, this type of control device has a charge detection for detecting that the charging means is in operation, and when detecting that the charging means is in operation, it has been designed to control the heating unit to operate. .

  FIG. 3 shows the specific configuration. When the electric vehicle is stopped, when the ON command for the heating unit 102 is issued from the transmitter 101, if the battery 103 is being charged, the AC / DC inverter 104 If the heating unit 103 and the auxiliary heating device 105 are operated by power supply and charging is not being performed, whether or not preheating is possible is determined according to the remaining amount of the battery 103, and if this is possible, the heating unit 103 and The structure which operates the auxiliary heating apparatus 105 was employ | adopted (for example, refer patent document 1).

JP-A-8-268036

  However, since the conventional device is configured to operate the heating unit 103 and the auxiliary heating device 105 during battery charging, the current becomes large and cannot be handled by a limited ordinary household outlet.

  Therefore, it is necessary to limit the charging current so that the current capacity does not exceed, and there is a problem that it takes too much time to charge the battery.

  The present invention solves such a conventional problem, and an object of the present invention is to rationally start a heater so as not to hinder battery charging.

  The heater control apparatus for heating an electric vehicle according to the present invention includes a heater control unit that controls a heater that heats the electric vehicle, and a battery charge control unit that controls charging of a battery serving as a power source of the electric vehicle. The heater control means starts energization of the heater in response to a charge completion signal from the battery charge control means.

  As a result, a general household outlet can be fully utilized for charging the battery, the charging time can be shortened, and energization of the heater can be performed rationally without affecting the charging of the battery.

  According to the heater control apparatus for heating an electric vehicle of the present invention, the battery can be charged reliably and quickly, so that it is practical. In addition, pre-heating is possible in winter and cold regions. From a certain point, the usability of electric vehicles can be greatly improved.

1 is a block diagram of a heater control device for heating an electric vehicle in Embodiment 1 of the present invention. The block diagram of the heater control apparatus for the heating of the electric vehicle in Example 2 of this invention Block diagram of a heater control device for heating in a conventional electric vehicle

  A heater control device for heating an electric vehicle of an electric vehicle according to the present invention includes a heater control unit that controls a heater that performs heating, and a battery charge control unit that controls charging of a battery serving as a power source of the electric vehicle, The heater control means starts energization to the heater in response to a charge completion signal from the battery charge control means.

  Therefore, a general household outlet can be fully utilized for charging the battery, the charging time can be shortened, and energization of the heater can be performed rationally without affecting the charging of the battery.

  The heater may be a seat heater that heats the seat and / or a handle heater that heats the handle.

  The battery charging control means completes the charging when the charging of the battery proceeds and the charging current decreases to a predetermined value.

  The heater control unit controls energization to the heater so that the set temperature T1 is reached, and controls energization to the heater so that the temperature is lower than the set temperature T1 when the heater energization is started after the battery charging is completed. In addition, it is desirable that after the energization to the heater is started, the energization to the heater is stopped when the electric vehicle is not started so that the pre-heating is performed efficiently.

  Preferably, the control by the heater control means is such that the seat heater and / or the handle heater is individually energized so that the heating temperature for each part is optimally set.

  Embodiments of the present invention will be described below with reference to the drawings. In addition, an Example does not limit this invention.

Example 1
FIG. 1 shows a seat of an electric vehicle provided with a heating function. A battery 2 as a power source of a motor 1 is charged by a household power source 3 comprising an outlet, and the charging is controlled by a battery charge control means 4. It has become.

  The heater control means 5 controls the current of the household power supply 3 and supplies it to the seat heater 6, and is linked with the battery charge control means 4.

  When an electric vehicle plug (not shown) is connected to the outlet of the household power supply 3 for charging the battery 2, the battery charge control means 4 converts the supplied AC power into a predetermined DC voltage to obtain the charge amount of the battery 2. Charging is started at the corresponding charging current.

  When the charging is completed, the battery charge control means 4 transmits a charge completion signal to the heater control means 5. Then, the heater control means 5 controls the DC voltage of the household power supply 3 and supplies it to the seat heater 6 to increase the temperature of the seat.

  In terms of actual use, the battery 2 can be charged at night, and the seat heater 6 can warm the seat. That is, by warming the seat, the interior of the vehicle is preheated with the radiant heat, It is possible to greatly improve the convenience of the user who uses the electric vehicle on a cold morning.

  As described above, in this embodiment, since the seat heater 6 is energized after the charging of the battery 2 is completed, the seat heater 6 is reliably operated without being affected by the charging of the battery 2. It is something that can be done.

  As a means for detecting the completion of charging of the battery 2, it can be considered that the battery charge control means 4 is provided with a battery charge current detection means.

  That is, as the charging of the battery 2 proceeds, the charging current gradually decreases. When the charging current reaches a predetermined value, the battery charging current detection means stops charging the battery 2 and sends a signal indicating completion of charging to the heater control means 5.

  By the way, the seat heater 6 has temperature detection means for detecting the temperature, and the heater control means 5 controls the current supplied to the seat heater 6 by comparing the temperature detected by the temperature detection means with the set temperature. It is desirable to provide temperature comparison means for each.

  That is, the temperature T of the seat heater 6 is compared with the temperature T1 set by the temperature comparison means. When T> T1, the energization to the seat heater 6 is cut off, and when T <T1, the energization is continued. Thus, the temperature of the seat heater 6 is kept at a predetermined value T1.

  In addition, when energization of the seat heater 6 is started after the charging of the battery 2 is completed, it is conceivable that the temperature T2 is lower than T1. This is to save energy in heating energy in an unmanned vehicle.

  Furthermore, it is conceivable that the heater control means 5 is provided with a timer means for timing from the start of energization to the seat heater 6 to the use of the electric vehicle.

  That is, the time from the start of energization to the seat heater 6 to the activation of the motor 1 is measured by the timer means, and if the motor 1 is not activated within a predetermined time, the seat heater is connected via the heater control means 5. Stop energizing 6.

  Therefore, when the electric vehicle is not used for a long time, the energization to the seat heater 6 is stopped, and unnecessary power consumption can be prevented.

(Example 2)
FIG. 2 shows a second embodiment, which is different from the first embodiment described above in that a seat heater 6 and a handle heater 7 are arranged as heaters, and the heater control means 5 uses the seat heater 6 and the handle heater 7. Are controlled individually.

  In addition, the same code | symbol is attached | subjected to the component which performs the same effect as FIG. 1, and the thing of Example 1 is used for the specific description.

  According to the above-described configuration, the seat and the handle are maintained at a heating temperature suitable for the seat and the handle, and the user feels very comfortable to use.

  As described above, the heater control apparatus for heating an electric vehicle according to the present invention is practical because the battery can be charged reliably and quickly. In addition, preheating is performed in winter and in cold regions. Since it is possible, the usability of the electric vehicle can be greatly enhanced, and the utility of the electric vehicle in a cold region can be greatly enhanced.

DESCRIPTION OF SYMBOLS 1 Motor 2 Battery 4 Battery charge control means 5 Heater control means 6 Seat heater 7 Handle heater

Claims (6)

Heater control means for controlling a heater for heating the electric vehicle and battery charge control means for controlling charging of a battery serving as a power source for the electric vehicle, wherein the heater control means is charged from the battery charge control means. A heater control apparatus for heating an electric vehicle that starts energizing a heater in response to a completion signal. 2. The heater control device for heating an electric vehicle according to claim 1, wherein the heater comprises a seat heater for heating the seat and / or a handle heater for heating the steering wheel. The heater control apparatus for heating an electric vehicle according to claim 1, wherein the battery charging control means completes the charging when the charging of the battery proceeds and the charging current decreases to a predetermined value. The heater control means controls energization to the heater so as to reach the set temperature T1, and also controls energization to the heater so that the temperature becomes lower than the set temperature T1 when the heater energization is started after the battery charging is completed. The heater control device for heating an electric vehicle according to claim 1. The heater control device for heating an electric vehicle according to claim 1, wherein the heater control means stops energization to the heater when the electric vehicle is not started after energization to the heater is started. The heater control device for heating an electric vehicle according to claim 2, wherein the heater control means individually energizes the seat heater and the handle heater.

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