CN-116653610-B - SOC display method and device, vehicle and storage medium

Abstract

The application discloses an SOC display method and device, a vehicle and a storage medium, and belongs to the technical field of automobiles. The method comprises the steps of obtaining discharging current of a battery of the electric automobile, detecting residual electric quantity of the battery under the condition that the discharging current indicates that the battery of the electric automobile is in a high-power discharging state to obtain a first SOC, obtaining a second SOC which is an SOC displayed at the previous moment of the electric automobile, adjusting the second SOC under the condition that the first SOC and the second SOC meet adjustment conditions to obtain a third SOC, displaying the third SOC, and indicating that the SOC of the battery can jump if the discharging current of the electric automobile indicates that the battery is in the high-power discharging state, so that the SOC to be displayed of the current electric automobile is determined according to the detected SOC of the battery and the SOC displayed at the previous moment of the electric automobile, the situation that the SOC jumps is prevented, and the stability of the displayed SOC is ensured.

Inventors

• HE YUNFEI
• HAI BIN
• LU FAYAN
• LIU JIANMING
• LIU TAO

Assignees

• 奇瑞汽车股份有限公司

Dates

Publication Date

20260505

Application Date

20230504

Claims (5)

1. 1. An SOC display method, wherein the method is performed by an electric vehicle, the method comprising: The method comprises the steps of obtaining a discharge current of a battery of an electric automobile, detecting the residual electric quantity of the battery to obtain a first SOC when the discharge current indicates that the battery of the electric automobile is in a high-power discharge state, obtaining a second SOC which is an SOC displayed at the previous moment of the electric automobile, adjusting the second SOC to obtain a third SOC when the first SOC and the second SOC meet adjustment conditions, and displaying the third SOC; And adjusting the second SOC to obtain a third SOC under the condition that the first SOC and the second SOC meet the adjustment conditions, wherein the method comprises the following steps: Determining that the first SOC and the second SOC satisfy the adjustment condition, in a case where the first SOC is not less than the second SOC; Determining a difference between a second SOC and a variation value of the second SOC as the third SOC when the variation value of the second SOC is smaller than the variation value of the first SOC, or determining a difference between the second SOC and the variation value of the first SOC as the third SOC when the variation value of the second SOC is not smaller than the variation value of the first SOC; and adjusting the second SOC to obtain a third SOC when the first SOC and the second SOC meet an adjustment condition, and further including: Determining that the first SOC and the second SOC satisfy the adjustment condition, if the first SOC is smaller than the second SOC; determining the first SOC as the third SOC in the case that the first SOC is greater than the difference between the second SOC and the second SOC variation value, or Determining a difference between the second SOC and the variation value of the second SOC as the third SOC in the case that the first SOC is not greater than the difference between the second SOC and the variation value of the second SOC is not greater than the variation value of the second SOC, or Determining a difference between the second SOC and a second SOC variation value as the third SOC in a case where the first SOC is not greater than the difference between the second SOC and a second SOC variation value, and the second SOC variation value is greater than the second SOC variation value; The method further comprises the steps of: Acquiring a fourth SOC, wherein the fourth SOC is obtained by detecting the residual electric quantity of the battery at the last moment; Determining the product as the first SOC variation value if the product of the difference between the fourth SOC and the first SOC and a first value is not greater than a first SOC threshold, or determining the first SOC threshold as the first SOC variation value if the product of the difference between the fourth SOC and the first value is greater than the first SOC threshold; The method may further include determining the product as the second SOC variation value if the product of the difference between the fourth SOC and the first SOC and the second value is not greater than a second SOC threshold, or determining the second SOC threshold as the second SOC variation value if the product of the difference between the fourth SOC and the first SOC and the second value is greater than the second SOC threshold.
2. 2. The method according to claim 1, wherein the method further comprises: And under the condition that the discharge current is effective and the discharge current is larger than a current threshold value, determining that the discharge current indicates that the battery of the electric automobile is in the high-power discharge state.
3. 3. An SOC display apparatus, the apparatus comprising: the acquisition module is used for acquiring the discharge current of the battery of the electric automobile; The detection module is used for detecting the residual electric quantity of the battery under the condition that the discharge current indicates that the battery of the electric automobile is in a high-power discharge state, so as to obtain a first SOC; the acquisition module is further configured to acquire a second SOC, where the second SOC is an SOC displayed at a previous time of the electric vehicle; the adjusting module is used for adjusting the second SOC to obtain a third SOC under the condition that the first SOC and the second SOC meet the adjusting conditions; the display module is used for displaying the third SOC; The adjusting module is used for determining that the first SOC and the second SOC meet the adjusting condition under the condition that the first SOC is not smaller than the second SOC; Determining a difference between a second SOC and a variation value of the second SOC as the third SOC when the variation value of the second SOC is smaller than the variation value of the first SOC, or determining a difference between the second SOC and the variation value of the first SOC as the third SOC when the variation value of the second SOC is not smaller than the variation value of the first SOC; The adjustment module is further configured to determine that the first and second SOCs meet the adjustment condition when the first SOCs are smaller than the second SOCs, determine that the first SOCs are the third SOCs when the first SOCs are larger than a difference between the second SOCs and a second SOCs change value, or determine that the second SOCs are the third SOCs when the first SOCs are not larger than a difference between the second SOCs and a second SOCs change value is not larger than the second SOCs change value, or determine that the difference between the second SOCs and the second SOCs is the third SOCs when the first SOCs are not larger than a difference between the second SOCs and a second SOCs change value is larger than the second SOCs change value; the acquisition module is further configured to acquire a fourth SOC, where the fourth SOC is an SOC obtained by detecting a remaining power of the battery at a previous time; The apparatus further includes a determination module to determine a product of a difference between the fourth SOC and the first SOC and a first value as the first SOC variation value if the product is not greater than a first SOC threshold, or to determine the first SOC threshold as the first SOC variation value if the product of a difference between the fourth SOC and the first value is greater than the first SOC threshold; The determining module is further configured to determine the product of the difference between the fourth SOC and the first SOC and a second value as the second SOC variation value if the product of the difference between the fourth SOC and the first SOC and the second value is not greater than a second SOC threshold, or determine the second SOC threshold as the second SOC variation value if the product of the difference between the fourth SOC and the first SOC and the second value is greater than the second SOC threshold.
4. 4. An electric vehicle, characterized in that it comprises a processor and a memory, in which at least one program code is stored, which is loaded and executed by the processor to implement the SOC display method according to any of claims 1 to 2.
5. 5. A computer readable storage medium having stored therein at least one program code loaded and executed by a processor to implement the SOC display method of any of claims 1 to 2.

Description

SOC display method and device, vehicle and storage medium Technical Field The application relates to the technical field of automobiles, in particular to an SOC display method, an SOC display device, a vehicle and a storage medium. Background With the rapid development of automobile technology, electric automobiles become an important member in the automotive field. The electric vehicle is provided with a motor, and the electric vehicle can be powered by the motor. The motor is powered by a battery, and the electric vehicle can inform a user of the remaining power of the battery of the electric vehicle by displaying the SOC (State of Charge), and how to display the SOC of the battery is a problem to be solved. Disclosure of Invention The embodiment of the application provides an SOC display method, an SOC display device, a vehicle and a storage medium, which can prevent the occurrence of SOC jump and ensure the stability of SOC display. The technical scheme is as follows: In one aspect, there is provided an SOC display method, the method being performed by an electric vehicle, the method including: Acquiring a discharge current of a battery of the electric automobile; Detecting the residual electric quantity of the battery under the condition that the discharge current indicates that the battery of the electric automobile is in a high-power discharge state, so as to obtain a first SOC; Acquiring a second SOC, wherein the second SOC is the SOC displayed at the previous moment of the electric automobile; Under the condition that the first SOC and the second SOC meet the adjustment conditions, the second SOC is adjusted to obtain a third SOC; and displaying the third SOC. In one possible implementation manner, the adjusting the second SOC to obtain a third SOC when the first SOC and the second SOC meet an adjustment condition includes: Determining that the first SOC and the second SOC satisfy the adjustment condition, in a case where the first SOC is not less than the second SOC; And determining a difference value between the second SOC and the change value of the second SOC as the third SOC when the change value of the second SOC is smaller than the first SOC change value, or determining a difference value between the second SOC and the first SOC change value as the third SOC when the change value of the second SOC is not smaller than the first SOC change value, or adjusting the second SOC based on the difference value between the first SOC and the SOC detected by the battery at the last time and the first dropping rate to obtain the third SOC. In one possible implementation, the method further includes: Acquiring a fourth SOC, wherein the fourth SOC is obtained by detecting the residual electric quantity of the battery at the last moment; A product of a difference between the fourth SOC and the first SOC and a first value is determined as the first SOC variation value. In one possible implementation, the method further includes: In a case where a product of a difference between the fourth SOC and the first SOC and a first value is greater than a first SOC threshold value, the first SOC threshold value is determined as the first SOC variation value. In one possible implementation manner, the adjusting the second SOC to obtain a third SOC when the first SOC and the second SOC meet an adjustment condition includes: Determining that the first SOC and the second SOC satisfy the adjustment condition, if the first SOC is smaller than the second SOC; in a case where the first SOC is greater than a difference between the second SOC and a second SOC variation value, the first SOC is determined to be the third SOC. In one possible implementation manner, the adjusting the second SOC to obtain a third SOC when the first SOC and the second SOC meet an adjustment condition includes: Determining that the first SOC and the second SOC satisfy the adjustment condition in a case where the first SOC is not greater than a difference between the second SOC and a second SOC variation value; And determining a difference value between the second SOC and the change value of the second SOC as the third SOC when the change value of the second SOC is not larger than the second SOC change value, or determining a difference value between the second SOC and the second SOC change value as the third SOC when the change value of the second SOC is larger than the second SOC change value, or adjusting the second SOC based on the difference value between the first SOC and the SOC detected by the battery at the last time and the first dropping rate to obtain the third SOC. In one possible implementation, the method further includes: Acquiring a fourth SOC, wherein the fourth SOC is obtained by detecting the residual electric quantity of the battery at the last moment; A product of a difference between the fourth SOC and the first SOC and a second value is determined as the second SOC variation value. In one possible implementation, the method furt