摘要:
Provided is a vehicle power supply device which prevents confusion and erroneous recognition by allowing a user to clearly determine whether a battery is being charged or is being discharged to supply electricity to an electric device. A vehicle power supply device including a battery and mounted in a vehicle capable of traveling by using a motor as a drive source comprises: an external charging terminal used to charge the battery from an external power supply or an external charger; an external output terminal used to discharge the battery to supply electricity from the battery to an electric device; and a mark display unit configured to display a charging mark 2 indicating that the battery is being charged and a discharging mark 3 indicating that the battery is being discharged to supply electricity to the electric device. The charging mark 2 and the discharging mark 3 each have a shape resembling a plug and include terminals 2a and terminals 3a pointing in opposite directions.
摘要:
When warming-up of a battery is in progress (S12), a battery charge state at the warming-up start time of the battery is set to a battery hold capacity SOC hold (S14, S15), and a charge power for the battery is controlled so that a battery charge state SOC is kept at SOC hold . When a present time is in a timer charge reservation time (S11), the charge power for the battery is controlled so that SOC becomes a full charge state SOC full (S17). Even if SOC has a tendency to temporarily decrease due to a rapid increase of heater consumption power just after start of warming-up of the battery, by keeping SOC at SOC hold (SOC = SOC hold ), SOC can reach a full charge state as intended during the timer charge reservation time. A proportion of charge using low-priced midnight power is increased to a maximum then running cost can be suppressed.
摘要:
Even when temperature sensors (12, 13) used in a device for warming a battery (1) being not in use by using a battery-driven heater (2) have failed, the battery (1) is prevented from freezing. Based on a battery temperature (Tb) and an outside air temperature (Ta), times (Δt1 to Δt8) during which Tb will decrease down to a warming start temperature (Tb_start) are each set to the next controller startup time (Δt). A controller (9) is started up every Δt, at t2, t3, and t4, and checks whether Tb
摘要:
Provided is a battery temperature control device configured to automatically heat a battery (1) with a battery-driven heater (2) so that the battery does not freeze at a minimum electric power consumption when the battery is out of use. The battery temperature control device predicts, based on a combination of a battery temperature Tbat and an outside air temperature Tatm, a predictive time that the battery temperature Tbat is likely to be less than a first set temperature Tbat1, while the battery temperature Tbat is higher than or equal to the first set temperature Tbat1 at which there is no risk of freezing (step S13), and sets the predictive time as the next controller startup time Δt (step S14), and determines whether or not the battery temperature has fallen to below the first set temperature (i.e., Tbat
摘要:
When completion of timer charge before elapse of a designated time is designated by a timer charge reservation means for allowing a user to designate a predetermined charge time zone and a target amount of electric power to be charged to the battery, a timer charge start time is determined. Upon carrying out the timer charge, when it is predicted that the timer charge and battery heating are simultaneously carried out, a required amount of extension of a charge time period is determined so as to complete charge of the battery by the designated time, and starts charge of the battery at a time advanced relative to the timer charge start time by the required amount of extension of a charge time period. With this control, charge of the battery can be completed at a predetermined time without unnecessary enhancement in a required capacity of a battery heater.
摘要:
At a timing of time t1, battery temperature Tbat lowers to Tbat_start and a warm-up request occurs, SOC at this time is a level, like time t2, which allows a vehicle to travel by itself up to a battery charging facility and allows a battery charger to be connected to the battery charging facility. Since a warm-up permission judging value is set to SOCs_low that is substantially 0 at time t1, in response to judgment of "SOC ≧ SOCs_low (≒ 0)", warm-up of the battery is carried out from time t1 as shown by a solod line, then Tbat can be increased from time t1. A battery charge time can be thus shortened. With this, in order that the battery does not freeze while the battery is unused, a control that warms up the battery by a battery-driven heater is performed while shortening the battery charge time.