Abstract: One or more controllers, after activation of a vehicle, may charge and discharge a traction battery according to power limits that are based on polarization voltages describing internal states of the traction battery and that are a function of polarization voltages present at a last deactivation of the vehicle and decay values having time constants that are based on a state of charge of the traction battery and a temperature associated with the traction battery.

Abstract: A system, such an electrified vehicle, includes a battery, such as a traction battery. The system further includes a controller configured to control the battery based on (i) a value of a first parameter of a model of the battery taken from electrical measurements of the battery and (ii) a value of a second parameter of the model, dependent on the value of the first parameter, taken from the value of the first parameter.

Abstract: A traction battery controller of an electrified vehicle dynamically adjusts an estimation gain based on a state-of-charge (SOC) of the traction battery and controls the vehicle according to an operating characteristic of the traction battery estimated from an equivalent circuit model of the traction battery that depends on the estimation gain. The controller may reduce the estimation gain while the SOC is low or high and may otherwise maintain the SOC. The controller may dynamically adjust the estimation gain based further on a temperature of the traction battery. The operating characteristic may be a power capability of the traction battery or an updated SOC of the traction battery.

Abstract: A vehicle includes a battery, a motor, and one or more controllers. The controllers, responsive to data indicative of an internal cell temperature of one or more cells of the battery exceeding a threshold, decrease power output from the battery to the motor. The data is based on a surface temperature of at least one of the cells and a cell heating power parameter derived from a plurality of parameters and via a delay timer and a filter.

Abstract: A traction battery controller of an electrified vehicle controls the traction battery based in part on a value of a current-independent parameter, decomposed from a current-dependent parameter of a model of the traction battery, that is estimated based on voltage and current measurements of the traction battery. The controller may detect, based in part on the estimated value of the current-independent parameter, a power capability of the traction battery and control a vehicle component according to the power capability of the traction battery.

Abstract: Provided in the present disclosure is a preparation method of paeoniflorin-6?-O-benzene sulfonate. The method uses crude paeoniflorin instead of paeoniflorin as a raw material, which more complies with actual requirements of an industrial production process of paeoniflorin-6?-O-benzene sulfonate, and uses an organometallic catalyst, an acid-binding agent and chemically active benzenesulfonyl chloride to react with paeoniflorin. Compared with the prior art, the method significantly increases the yield of crude paeoniflorin-6?-O-benzene sulfonate which is separated and purified by means of column chromatography and then refined to obtain paeoniflorin-6?-O-benzenesulfonate with a content of at least 98%, thereby realizing industrial production of the paeoniflorin-6?-O-benzene sulfonate.

Abstract: This application provides a water conservancy project operation trend prediction method. The method includes: acquiring to-be-processed initial monitoring data, and determining a first type of monitoring data and a second type of monitoring data according to the initial monitoring data; determining a target nonlinear fitting model from a preset nonlinear fitting model set according to the second type of monitoring data; and predicting the state of a target water conservancy project by a new model constructed by combining the target nonlinear fitting model with the models in the preset prediction model set.

Abstract: A traction battery controller of an electrified vehicle dynamically selects an estimation gain based on an operating condition of the vehicle and controls the vehicle according to a state (e.g., a state-of-charge (SOC)) of the traction battery estimated from an equivalent circuit model of the traction battery that depends on the estimation gain. The operating condition of the vehicle may be indicative of on-board energy (OBE) or a power demand of the vehicle. In operation, the controller selects the estimation gain to be (i) a high estimation gain during a first operating condition of the vehicle, whereby compared to a nominal estimation gain the battery state is estimated at an increased speed but with lower accuracy and (ii) a low estimation gain during a second operating condition of the vehicle, whereby compared to the nominal estimation gain the battery state is estimated with greater accuracy but at a decreased speed.

Abstract: A method for detecting a capacity of a battery, such as a traction battery of an electrified vehicle, includes varying a charge current provided to the battery and measuring a terminal voltage of the battery as the charge current is being varied. An estimator, that utilizes voltage feedback based on a model of the battery to provide state and parameter estimations of the battery, is driven with the terminal voltage to estimate a state-of-charge (SOC) of the battery. The capacity of the battery may be detected based in part on the SOC.

Abstract: A self-sinking-type deep foundation pit retaining wall structure, comprising a cylindrical retaining wall body (1); a ground breaking structure (2) is formed at the bottom of the cylindrical retaining wall body (1), and the cylindrical retaining wall body (1) is suitable for achieving downward ground breaking and sinking by means of the cooperation of the ground breaking structure (2) and the gravity of the cylindrical retaining wall body; and a water pipe (20) running through the cylindrical retaining wall body is cast in the cylindrical retaining wall body (1), and the water pipe (20) is provided with a water outlet (80) located at the lower end face of the cylindrical retaining wall body (1) and a water inlet (81) located at the upper end face of the cylindrical retaining wall body (1).

Abstract: A honeycomb core with S-shaped reinforced structures includes multiple cylindrical unit cells arranged in a honeycomb shape and with a polygonal cross section, the cylindrical unit cells are divided into plain unit cells and S-shaped reinforced unit cells, an inner cavity of the plain unit cell is hollow, and the inner cavity of the S-shaped reinforced unit cell is equipped with an S-shaped reinforced structure, a cross section of the S-shaped reinforced structure is S-shaped and the inner cavity of the S-shaped reinforced unit cell is divided into two halves on average. This structure guides the load-transfer path effectively by controlling the rotation of S-shaped reinforced cells, it changes the position of plastic collapse in the structure, and finally changes the peak load of the core. Under different working conditions, the design of the arrangement of S-shaped reinforced structures can make the core produce different peak loads.

Abstract: A vehicle includes a battery, a motor, and one or more controllers. The controllers, responsive to data indicative of an internal cell temperature of one or more cells of the battery exceeding a threshold, decrease power output from the battery to the motor. The data is based on a surface temperature of at least one of the cells and a cell heating power parameter derived from a plurality of parameters and via a delay timer and a filter.

Abstract: A self-sinking-type deep foundation pit retaining wall structure, comprising a cylindrical retaining wall body (1); a ground breaking structure (2) is formed at the bottom of the cylindrical retaining wall body (1), and the cylindrical retaining wall body (1) is suitable for achieving downward ground breaking and sinking by means of the cooperation of the ground breaking structure (2) and the gravity of the cylindrical retaining wall body; and a water pipe (20) running through the cylindrical retaining wall body is cast in the cylindrical retaining wall body (1), and the water pipe (20) is provided with a water outlet (80) located at the lower end face of the cylindrical retaining wall body (1) and a water inlet (81) located at the upper end face of the cylindrical retaining wall body (1).

Abstract: Disclosed are a household plant essential oil extractor and an operation method therefor. The household plant essential oil extractor comprises a plant essential oil separation device, a plant essential oil collection device and a heated cup body, wherein the plant essential oil separation device is detachably arranged inside the heated cup body and used for filtering plant essential oil inside the heated cup body; and the plant essential oil collection device is detachably arranged on the plant essential oil separation device and used for collecting the filtered plant essential oil.

Abstract: A battery management system for an electric vehicle is provided. The battery management system may include a battery pack and a battery controller. The battery controller may acquire a first reading of the battery pack in response to first criteria being met, acquire a second reading of the battery pack in response to second criteria being met, and determine an estimated capacity of the battery pack. The battery controller may further validate the estimated capacity in response to third criteria being met. In one example, the capacity of cells is updated in a closed loop manner where both the new learned values and old valid value are engaged. The different learned values of capacity values are adaptively averaged based on the battery conditions such as temperature, accuracy of learned values, time since last update and depth of aging. The proposed methodology updates capacity in a periodic manner where different operation conditions are accommodated to facilitate capacity estimation.

Abstract: A system and method for battery management of a vehicle is provided. The battery management system may include a battery cell or pack; a contactor and a battery controller. The contactor may be connected to the battery cell or pack. The battery controller may be connected to the battery cell or pack and the contactor. The battery controller may acquire a first measurement of the battery in response to a Keyoff event after disconnection of the contactor. The battery controller may also acquire a second measurement of the battery in response to a Keyon event before connection of the contactor. The battery controller may determine an open circuit voltage (OCV) of the battery cell or pack based on the first and second measurements. For example, the acquired OCV may be used to estimate SOC of the battery and may be used to calibrate the SOC estimation algorithm or other algorithms. The battery controller may also use the acquired measurements to identify the battery model parameters.

Abstract: The present invention discloses a melt impregnation device and a melt impregnation method. Through an impregnation chamber with a corrugated shape, when a resin melt-distributing runner is connected with a peak position of the impregnation chamber, a chamber vertical height of the peak position of the impregnation chamber is larger than a chamber vertical height of a trough position of the impregnation chamber, and when the resin melt-distributing runner is connected with the trough position of the impregnation chamber, the chamber vertical height of the trough position of the impregnation chamber is larger than the chamber vertical height of the peak position of the impregnation chamber. The present invention can balance an impregnating effect of a continuous fiber band, can carry a broken fiber hairiness which is generated during the impregnation out of an impregnation area, avoids a broken yarn, and enhances a production stability and a production efficiency.